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BEGIN:VEVENT
DTSTART;TZID=UTC:20250710T160000
DTEND;TZID=UTC:20250710T170000
DTSTAMP:20260414T185732
CREATED:20250707T140406Z
LAST-MODIFIED:20250707T140406Z
UID:2882-1752163200-1752166800@rpm.physics.lbl.gov
SUMMARY:Speaker: Michael Reh (Boulder) - Title: Improving the Super-Kamiokande Analysis in the T2K Experiment
DESCRIPTION:Research Progress Meeting \nDate: July 10\, 2025 \nTime: 4:00- 5:00 pm \nLocation: This is a virtual event. Please see zoom link below.   \nSpeaker: Michael Reh (Boulder) \nTitle: Improving the Super-Kamiokande Analysis in the T2K Experiment \nAbstract: The Tokai-to-Kamioka (T2K) Experiment is a long baseline neutrino oscillation experiment located in Japan. T2K searches for muon neutrino disappearance and electron neutrino appearance oscillations at its far detector\, Super-Kamiokande (SK). When performing the T2K neutrino oscillation analysis\, the SK detector performance and reconstruction must be well understood in order to be certain of the number of muon and electron neutrino events observed. The T2K event reconstruction algorithm fiTQun does well to classify simulated electron and muon events in the detector\, however differences in reconstruction performance between simulated and real data events can bias the T2K analysis results. In this seminar\, the methods for estimating the T2K-SK detector reconstruction uncertainty will be discussed\, including significant upgrades that include events with multiple visible particle final states in the T2K-SK analysis for the first time. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-michael-reh-boulder-title-improving-the-super-kamiokande-analysis-in-the-t2k-experiment/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250715T160000
DTEND;TZID=UTC:20250715T170000
DTSTAMP:20260414T185732
CREATED:20250709T230843Z
LAST-MODIFIED:20250709T231512Z
UID:2886-1752595200-1752598800@rpm.physics.lbl.gov
SUMMARY:Speaker: Regina Demina (U of Rochester) - Title: How Quantum Are Elementary Particles?  Exploring Entanglement and the Quest for Toponium
DESCRIPTION:Research Progress Meeting \nDate: July 15\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Regina Demina (University of Rochester) \nTitle: How Quantum Are Elementary Particles? Exploring Entanglement and the Quest for Toponium\n \nAbstract: While quantum mechanics underpins particle physics\, truly quantum effects are surprisingly difficult to establish in high-energy interactions. A rare exception comes from recent observations of quantum entanglement in top–antitop quark pairs by the ATLAS and CMS experiments. In certain regions of phase space\, these particles appear to lie outside the causality cone\, making the result even more intriguing. In this talk\, I will review the details of these groundbreaking measurements\, their implications\, and potential criticisms. Some deviation in the observed level of correlation between top and antitop quarks resulted in an exciting discovery of toponium\, a bound state of top and antitop quarks observed by CMS. Recently confirmed by Atlas\, toponium is the heaviest known composite particle\, with a mass of 343 GeV—surpassing even the heaviest nucleus\, Oganesson\, at 279 GeV. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-regina-demina-u-of-rochester-title-how-quantum-are-elementary-particles-exploring-entanglement-and-the-quest-for-toponium/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250724T160000
DTEND;TZID=UTC:20250724T170000
DTSTAMP:20260414T185732
CREATED:20250717T172256Z
LAST-MODIFIED:20250717T172256Z
UID:2898-1753372800-1753376400@rpm.physics.lbl.gov
SUMMARY:Speaker: Alex Wang (UCSC) - Title: Searching for di-Higgs production with the bbγγ final state: early Run 3 and beyond
DESCRIPTION:Research Progress Meeting \nDate: July 24\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Alex Wang (UCSC) \nTitle: Searching for di-Higgs production with the bbγγ final state: early Run 3 and beyond \nAbstract: Since the discovery of the Higgs boson by the ATLAS and CMS experiments in 2012\, many of its properties have been constrained by precision measurements using LHC Run 2 data. One notable exception is the Higgs self coupling lambda\, which modifies the shape of the Higgs potential and\, in the Standard Model\, is completely determined by the Higgs mass and vacuum expectation value. A value of lambda different from the Standard Model prediction could have profound implications for particle physics and cosmology. The simultaneous production of two Higgs bosons (di-Higgs)\, is the most accessible way to study this coupling at the LHC but presents experimental challenges due to its low production cross-section\, about three orders of magnitude smaller than that of single Higgs.\nIn this talk\, I will present the latest ATLAS search for di-Higgs production with the bbγγ final state\, in which one Higgs decays into a pair of b-quarks and the other decays into a pair of photons. This is one of the most experimentally powerful channels due to the high H->bb branching ratio and the excellent ATLAS photon resolution. With the inclusion of the Run 2 (2015 – 2018) and early Run 3 (2022 – 2024) LHC datasets\, these new results constitute both the first ATLAS result using over 300ifb of data and also the world’s best single-channel di-Higgs constraints to-date. Finally\, I will discuss the latest prospects for the High Luminosity LHC\, which is expected to increase the dataset by over a factor of 10 and bring us within observation of di-Higgs production. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-alex-wang-ucsc-title-searching-for-di-higgs-production-with-the-bb%ce%b3%ce%b3-final-state-early-run-3-and-beyond/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250814T160000
DTEND;TZID=UTC:20250814T170000
DTSTAMP:20260414T185732
CREATED:20250801T162328Z
LAST-MODIFIED:20250801T162328Z
UID:2910-1755187200-1755190800@rpm.physics.lbl.gov
SUMMARY:Speaker: Nicola Neri (INFN) - Title: Probing Charm Baryon Dipole Moments at the LHC with ALADDIN
DESCRIPTION:Research Progress Meeting \nDate: August 14\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Nicola Neri (INFN) \nTitle: Probing Charm Baryon Dipole Moments at the LHC with ALADDIN \nAbstract: The magnetic and electric dipole moments (MDM and EDM) of charm baryons have yet to be measured. These fundamental properties are sensitive probes of non-perturbative QCD dynamics and potential signatures of physics beyond the Standard Model. The proposed ALADDIN experiment at the LHC aims to perform the first direct measurement of charm baryon dipole moments by exploiting spin precession in bent crystals\, within a dedicated fixed-target setup. \nIn this novel scheme\, protons from the LHC beam halo are steered by a bent crystal (“crystal kicker”) onto a tungsten target\, producing charm baryons with energies up to the TeV scale. These baryons are then captured and channeled by a second bent crystal\, where their spins undergo precession under strong electromagnetic fields — allowing the extraction of their dipole moments. \nA recent proof-of-principle test\, TWOCRYST\, has successfully demonstrated the viability of this two-crystal configuration in the LHC environment. These results are a key step in validating the experimental concept and guiding the optimization of the ALADDIN setup. \nIn this talk\, I will present the physics case for ALADDIN\, detail the experimental technique and detector concept\, and provide an update on ongoing detector R&D efforts. I will also report on recent results from the TWOCRYST test\, which mark a significant milestone toward realizing this ambitious measurement program. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-nicola-neri-infn-title-probing-charm-baryon-dipole-moments-at-the-lhc-with-aladdin/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250821T160000
DTEND;TZID=UTC:20250821T170000
DTSTAMP:20260414T185732
CREATED:20250812T143759Z
LAST-MODIFIED:20250812T143759Z
UID:2922-1755792000-1755795600@rpm.physics.lbl.gov
SUMMARY:Speaker: Darcy Newmark (MIT) - Title: Scintillation and Cherenkov Light Separation in a Liquid Argon Detector
DESCRIPTION:Research Progress Meeting \nDate: August 21\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Darcy Newmark (MIT) \nTitle: Scintillation and Cherenkov Light Separation in a Liquid Argon Detector \nAbstract: This talk will present the first event-by-event observation of Cherenkov radiation from sub-MeV electrons in a high-yield scintillator (liquid argon) detector\, representing a milestone in low-energy particle detector development and one of the major goals of 2021 Snowmass Process. This work utilizes the Coherent CAPTAIN-Mills (CCM) experiment\, a 10-ton liquid argon light collection detector located at the Los Alamos National Lab pion decays at rest source. The detector is instrumented with 200 8-inch PMTs\, 80% of which are coated in a wavelength shifter and 20% are uncoated. Using gamma-rays from a sodium-22 radioactive source\, we have isolated prompt Chernekov light with >5 sigma confidence\, possible through the unique combination of coated and uncoated PMTs. Cherenkov light identification allows for a highly pure selection of electromagnetic events\, enabling exciting beyond Standard Model physics searches that I will review. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-darcy-newmark-mit-title-scintillation-and-cherenkov-light-separation-in-a-liquid-argon-detector/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250828T160000
DTEND;TZID=UTC:20250828T170000
DTSTAMP:20260414T185732
CREATED:20250826T202456Z
LAST-MODIFIED:20250826T202456Z
UID:2932-1756396800-1756400400@rpm.physics.lbl.gov
SUMMARY:Speaker: Ben Allanach (Cambridge) - Title: Z' bosons in light of B-anomalies
DESCRIPTION:Research Progress Meeting \nDate: August 28\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Ben Allanach (Cambridge) \nTitle: Z’ bosons in light of B-anomalies \nAbstract: Many measurements of b->s transitions (when accompanied by a di-muon pair) disagree with state-of-the-art Standard Model (SM) predictions. On the other hand\, many other measurements\, including those measuring lepton flavour universality\, are in rough agreement with the SM.\nWe shall review such measurements and give a broad overview of the SM predictions. Z’ bosons with family-dependent couplings can significantly improve global fits. We give an example of a successful model\, re-cast LHC searches for it and provide HL-LHC sensitivity estimates. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-ben-allanach-cambridge-title-z-bosons-in-light-of-b-anomalies/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250904T153000
DTEND;TZID=UTC:20250904T163000
DTSTAMP:20260414T185732
CREATED:20250714T205819Z
LAST-MODIFIED:20250829T201548Z
UID:2893-1756999800-1757003400@rpm.physics.lbl.gov
SUMMARY:Speaker: Heather Gray (LBNL) and Simone Pagan Griso (LBNL) - Title: What's next for CERN? Summary of the 2025 European Strategy for Particle Physics Open Symposium
DESCRIPTION:Research Progress Meeting \nDate: September 4\, 2025 \nTime: 3:30pm-4:30pm [Note special time]  \nLocation: 50-4-Auditorium [Note special location] \nSpeaker: Heather Gray (LBNL) and Simone Pagan Griso (LBNL) \nTitle: What’s next for CERN? Summary of the 2025 European Strategy for Particle Physics Open Symposium \nAbstract: CERN is undergoing a planning exercise to determine its long-term strategy in particle physics; this exercise has some similarity to the Snowmass/P5 process\, but with some differences.\nCenter to this strategy is what large-scale projects CERN will be undertaking after the LHC and its upgraded High-Luminosity LHC operations stop at around 2041.\nThis symposium represented the only general open meeting to showcase the current ideas and the received community inputs that were due in March 2025. It represented a middle-point before the appointed group starts drafting a report that is expected to be preliminarily available around the end of the year.\nIn this seminar\, we will summarize what has been shown and give our main take-aways from this symposium and the strategy process. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-heather-gray-lbnl-and-simone-pagan-griso-lbnl-title-whats-next-for-cern-summary-of-the-2025-european-strategy-for-particle-physics-open-symposium/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250911T160000
DTEND;TZID=UTC:20250911T170000
DTSTAMP:20260414T185732
CREATED:20250904T045444Z
LAST-MODIFIED:20250904T045444Z
UID:2942-1757606400-1757610000@rpm.physics.lbl.gov
SUMMARY:Speaker: Alan Poon (LBNL) - Title: Recent Results and Status of the Neutrinoless Double-Beta Decay Experiment LEGEND
DESCRIPTION:Research Progress Meeting \nDate: September 11\, 2025 \nTime: 4:00pm-5:00pm   \nLocation: 70A-3-3377 [Note special location] \nSpeaker: Alan Poon (LBNL) \nTitle: Recent Results and Status of the Neutrinoless Double-Beta Decay Experiment LEGEND \nAbstract: The Large Enriched Germanium Experiment for Neutrinoless ββ Decay (LEGEND) is a phased international program designed to answer one of the highest-priority questions in fundamental physics — whether neutrinos are their own anti-particles. Its first phase\, LEGEND-200\, reuses the cryostat of a previous-generation experiment\, GERDA\, in Hall A of the Laboratori Nazionali del Gran Sasso (LNGS) underground laboratory in Italy to house up to 200 kg of 76Ge-enriched high-purity germanium (HPGe) detectors. In this talk\, I will present the latest results from LEGEND-200’s search for the lepton-number-violating neutrinoless double-beta decay. I will also provide a synopsis of the planning of the second phase of the experiment\, LEGEND-1000. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-alan-poon-lbnl-title-recent-results-and-status-of-the-neutrinoless-double-beta-decay-experiment-legend/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250916T160000
DTEND;TZID=UTC:20250916T170000
DTSTAMP:20260414T185732
CREATED:20250912T181003Z
LAST-MODIFIED:20250912T191750Z
UID:2949-1758038400-1758042000@rpm.physics.lbl.gov
SUMMARY:Speaker: Daniel Baxter (Fermilab) - Title: A QUIET place: Fermilab’s Underground Facilities for Quantum Sensing
DESCRIPTION:Research Progress Meeting \nThis is a joint seminar with the Interdisciplinary Instrumentation Colloquium (IIC).  \nDate: September 16\, 2025 \nTime: 4:00- 5:00 pm \nLocation: 50-4-Auditorium  [Note location] [In-Person and HYBRID]  \nSpeaker: Daniel Baxter (Fermilab) \nTitle: A QUIET place: Fermilab’s Underground Facilities for Quantum Sensing\n \nAbstract: The infrastructure associated with building a large accelerator complex created some very unique spaces at Fermilab. In particular\, the MINOS tunnel\, excavated as part of the NuMI neutrino beam delivering neutrinos to the MINOS\, MINERVA\, and NOVA experiments\, is an easily-accessible 100m underground experimental space. The rock overburden at this depth blocks 99.5% of all cosmic ray muons\, and nearly all hadronic showers\, creating a unique\, low-background environment for novel detector development and calibration. \nThe NEXUS and QUIET laboratories\, each equipped with dilution refrigerators for 10mK detector operation\, are harnessing this opportunity. I will highlight the unique capabilities of these testbeds\, as well as some of the interesting results that have come out of them. I will briefly touch on some of our ongoing studies and proposed experiments for the near future. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/97314813383?pwd=LhetsZ74BUU2cbFP7ZZCye8ofksaUp.1 \nMeeting ID: 973 1481 3383 \nPasscode: 631580
URL:https://rpm.physics.lbl.gov/event/speaker-daniel-baxter-fermilab-title-a-quiet-place-fermilabs-underground-facilities-for-quantum-sensing/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250925T160000
DTEND;TZID=UTC:20250925T170000
DTSTAMP:20260414T185732
CREATED:20250919T213440Z
LAST-MODIFIED:20250926T224926Z
UID:2967-1758816000-1758819600@rpm.physics.lbl.gov
SUMMARY:Speaker: Jim Strait (LBNL) - Title: CMB-S4: birth\, life and death of a major science project
DESCRIPTION:Research Progress Meeting \nDate: September 25\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Jim Strait (LBNL) \nSlides: Download slides \nTitle: CMB-S4: birth\, life and death of a major science project \nAbstract: CMB-S4 was envisioned to be a comprehensive ground-based CMB experiment to make transformative discoveries and new insights in fundamental physics\, cosmology\, astrophysics\, and astronomy. It was conceived as a way to unite the entire CMB community to enable a ground-based experiment with capabilities beyond that of any of the smaller individual experiment to realize the enormous potential of CMB measurements for understanding the origin and evolution of the Universe\, from the highest energies at the dawn of time through the growth of structure to the present day. CMB-S4 was launched with great promise and enthusiasm at the 2013 Snowmass Summer Study\, grew into a large collaboration\, built a capable project organization\, developed an advanced technical design and scientific strategies\, was endorsed by multiple high-level advisory committees\, but ultimately was cancelled by the funding agencies in 2025. In this talk I will summarize the history and accomplishments of CMB-S4\, and provide an analysis of why it did not succeed. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-jim-strait-lbnl-title-cmb-s4-birth-life-and-death-of-a-major-science-project/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251002T160000
DTEND;TZID=UTC:20251002T170000
DTSTAMP:20260414T185732
CREATED:20250919T213846Z
LAST-MODIFIED:20250919T213846Z
UID:2970-1759420800-1759424400@rpm.physics.lbl.gov
SUMMARY:Speaker: Xinran Li (LBNL) - Title: Athermal phonon detectors for light dark matter search\, go small and go large
DESCRIPTION:Research Progress Meeting \nDate: October 2\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Xinran Li (LBNL) \nTitle: Athermal phonon detectors for light dark matter search\, go small and go large \nAbstract: Light dark matter below 100MeV could only deposit sub-eV energies in detectors\, which is invisible to traditional solid state ionizing detectors. Athermal phonon detectors that use superconducting sensors to read out the phonon signals from the target crystals have the potential to achieve sub-eV energy threshold.\nAs a member of the TESSERACT collaboration\, I work on the development of transition edge sensors (TESs). Our recent DM search achieved 1.5eV threshold and extended the constraint on DM mass down to 44MeV with a 0.23g silicon detector. Our latest understanding of the stress-induced low energy excess events suggests that an even smaller target could help us achieve sub-eV threshold.\nOn the other hand\, to go large\, envisioning the next generation 10~100g scale large light dark matter detector\, kinetic inductance devices (KIDs) have the advantages of being easily scalable through multiplexing. I lead the effort to develop Hafnium (Hf) low critical temperature (Tc) KIDs for phonon sensing. The internal energy resolution of Hf KID is compatible to TESs\, while improving phonon collection efficiency is challenging. Several paths forward are defined and being actively pursued\, including quasiparticle trapping\, phonon blocking\, and parametric amplification. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-xinran-li-lbnl-title-athermal-phonon-detectors-for-light-dark-matter-search-go-small-and-go-large/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251014T160000
DTEND;TZID=UTC:20251014T170000
DTSTAMP:20260414T185732
CREATED:20251009T130301Z
LAST-MODIFIED:20251009T130301Z
UID:2984-1760457600-1760461200@rpm.physics.lbl.gov
SUMMARY:Speaker: Tim Nelson (SLAC) - Title: Light Dark Matter eXperiment: A Discovery Experiment for Sub-GeV Dark Matter at SLAC
DESCRIPTION:Research Progress Meeting \nDate: October 14\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Tim Nelson (SLAC) \nTitle: Light Dark Matter eXperiment: A Discovery Experiment for Sub-GeV Dark Matter at SLAC \nAbstract: As searches for WIMPs approach fundamental sensitivity limits\, interest in the more general class of thermal relics has emerged\, where these dark matter candidates give rise to clear and testable predictions in small\, accelerator-based experiments. The Light Dark Matter eXperiment (LDMX) — proposed to operate in End Station A at SLAC using LCLS-II drive beam — is uniquely capable of searching for sub-GeV thermal relics that can explain the observed dark matter abundance. In this talk\, I will review the motivations for these searches\, describe how LDMX works\, and discuss the status of efforts to realize the experiment. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-tim-nelson-slac-title-light-dark-matter-experiment-a-discovery-experiment-for-sub-gev-dark-matter-at-slac/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251016T160000
DTEND;TZID=UTC:20251016T170000
DTSTAMP:20260414T185732
CREATED:20250915T162552Z
LAST-MODIFIED:20250915T162552Z
UID:2955-1760630400-1760634000@rpm.physics.lbl.gov
SUMMARY:Speaker: Chuan-Hong Liu (LBNL) - Title: Nonequilibrium Quasiparticles in Superconducting Quantum Bits
DESCRIPTION:Research Progress Meeting \nDate: October 16\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Chuan-Hong Liu (LBNL) \nTitle: Nonequilibrium Quasiparticles in Superconducting Quantum Bits \nAbstract: The ideal superconductor offers a pristine host for the fragile quantum states of a superconducting quantum computer. With an energy gap protecting against low-energy excitations\, qubits should\, in principle\, be isolated from unwanted modes that cause irreversible decay of quantum information. In practice\, however\, a significant density of excitations persists above the superconducting ground state\, even at ultralow temperatures. These excitations\, known as quasiparticles\, can drain energy from the qubit mode and induce dephasing\, thereby degrading quantum computer’s performance. In this talk\, we will discuss two dominant mechanisms of quasiparticle generation: resonant millimeter-wave absorption and impacts from high-energy particles. We further show that careful device design\, combined with a well-shielded operating environment\, provides effective strategies to mitigate quasiparticle poisoning. A deeper understanding of these processes will be essential for realizing the next generation of superconducting quantum computers that are resilient against quasiparticle-induced errors. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-chuan-hong-liu-lbnl-title-nonequilibrium-quasiparticles-in-superconducting-quantum-bits/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251023T160000
DTEND;TZID=UTC:20251023T170000
DTSTAMP:20260414T185732
CREATED:20250917T002023Z
LAST-MODIFIED:20250927T164502Z
UID:2961-1761235200-1761238800@rpm.physics.lbl.gov
SUMMARY:Speaker: Daniel Carney (LBNL) - Title: Experimental quantum gravity
DESCRIPTION:Research Progress Meeting \nDate: October 23\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Daniel Carney (LBNL) \nTitle: Experimental quantum gravity \nAbstract: This will be an informal talk on some ideas related to testing aspects of quantum gravity in experiments. There are two basic directions I will cover. One is experiments aimed at determining whether the gravitational field is a quantized degree of freedom in the real world. In particular\, I will discuss an experiment in this direction that we developed joint with Holger Muller on campus and which is about to come online. The other direction is a bit newer and something that I think our quantum groups at LBL could contribute to: quantum simulation of holographic physics (e.g.\, AdS/CFT). \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-dan-carney-lbnl-title-experimental-quantum-gravity/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251028T160000
DTEND;TZID=UTC:20251028T170000
DTSTAMP:20260414T185732
CREATED:20251023T234106Z
LAST-MODIFIED:20251023T234106Z
UID:2994-1761667200-1761670800@rpm.physics.lbl.gov
SUMMARY:Speaker: Dan Dwyer (LBNL) - Title: Development of the DUNE Near Detector
DESCRIPTION:Research Progress Meeting \nDate: October 28\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Dan Dwyer (LBNL) \nTitle: Development of the DUNE Near Detector \nAbstract: The Deep Underground Neutrino Experiment (DUNE) is an ambitious effort to measure neutrino properties via long-distance (1300 km) flavor oscillation of accelerator-generated neutrinos and antineutrinos. I will review the scientific challenges of this measurement\, the details of neutrino detection using immense liquid argon time-projection chambers\, and the crucial role of the DUNE Near Detector. I will highlight the role Berkeley Lab has played in development of the key technology and design of the Near Detector\, as well as experiences from operation of a large-scale prototype in a beam of antineutrinos. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-dan-dwyer-lbnl-title-development-of-the-dune-near-detector/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251030T150000
DTEND;TZID=UTC:20251030T170000
DTSTAMP:20260414T185732
CREATED:20251022T192814Z
LAST-MODIFIED:20251029T205644Z
UID:2990-1761836400-1761843600@rpm.physics.lbl.gov
SUMMARY:Special RPM: Academic Career Panel
DESCRIPTION:Special Research Progress Meeting – note special time and location. \nDate: October 30\, 2025 \nTime: 3:00- 5:00 pm \nLocation: Building 50 Auditorium [In-Person and HYBRID]  \nPanelists:\nBenjamin Safdi (UC Berkeley & LBNL)\nGabriel Orebi Gann (UC Berkeley & LBNL)\nSimone Pagan Griso (LBNL)\nMichael Levi (LBNL)\nKathryn Grimm (CalState East Bay)\nTitle: Academic Career Panel \nSummary: The Academic Career Panel will focus on the faculty job application and interview process. The event is especially geared toward postdocs preparing to apply for national lab or university faculty positions\, but everyone is welcome to attend. Panelists will include LBNL senior scientists and faculty members from UC Berkeley and neighboring universities\, who will share their experiences and answer questions about pursuing academic careers. Attendees are encouraged to bring questions about any aspect of the academic job process. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/special-rpm-academic-career-panel/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251106T160000
DTEND;TZID=UTC:20251106T170000
DTSTAMP:20260414T185732
CREATED:20251029T210024Z
LAST-MODIFIED:20251029T210024Z
UID:3001-1762444800-1762448400@rpm.physics.lbl.gov
SUMMARY:Speaker: Gianpaolo Carosi (LLNL) - Title: Tuning into Dark Matter with the ADMX experiment
DESCRIPTION:Research Progress Meeting \nDate: November 6\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Gianpaolo Carosi (LLNL) \nTitle: Tuning into Dark Matter with the ADMX experiment \nAbstract: The primordial axion remains one of the best solutions to both dark matter and the strong-CP problem (or why the neutron doesn’t have a measurable electric-dipole moment). The Axion Dark Matter Experiment (ADMX)\, which started at Lawrence Livermore National Laboratory in the mid-1990s\, is the DOE Flagship search for these particles in the micro-eV mass range. The experiment uses tunable resonant cavities in a large static magnetic field to enhance the conversion of dark matter axions to detectable microwaves in the GHz range. Quantum-limited amplifiers based on superconducting Josephson Junction circuits are critical to allow the search to be sensitive enough to rapidly scan the frequencies where the axion may exist. Here I will describe the detection strategy of ADMX\, the progress made so far and outline the potential next phase of the experiment dubbed ADMX-Extended Frequency Range (ADMX-EFR). I will also discuss LLNL’s involvement in the nascent BREAD broadband axion search. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-gianpaolo-carosi-llnl-title-tuning-into-dark-matter-with-the-admx-experiment/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251120T160000
DTEND;TZID=UTC:20251120T170000
DTSTAMP:20260414T185732
CREATED:20251115T001048Z
LAST-MODIFIED:20251115T001048Z
UID:3010-1763654400-1763658000@rpm.physics.lbl.gov
SUMMARY:Speaker: Xiaochen Ni (University of Washington) - Title: Development of TopmetalSe: CMOS/aSe Hybrid Detectors for Neutrino Physics
DESCRIPTION:Research Progress Meeting \nDate: November 20\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Xiaochen Ni (University of Washington) \nTitle: Development of TopmetalSe: CMOS/aSe Hybrid Detectors for Neutrino Physics \nAbstract: The Selena experiment couples an amorphous selenium (aSe) ionization target to a complementary metal–oxide–semiconductor (CMOS) pixel array as an imaging detector for next-generation neutrino physics. Hybrid a-Se/CMOS detectors provide a unique combination of high-Z stopping power\, direct charge conversion\, and fine-pitch pixel imaging. These properties enable precise reconstruction of ionization tracks with excellent spatial resolution\, allowing for low-background measurements with advanced event classification. In this talk\, I will present Selena’s capabilities for a neutrinoless double-beta decay search and share the ongoing detector R&D\, including the design\, fabrication\, and characterization of its first prototype pixel array\, TopmetalSe\, produced in the SkyWater 130 nm open-source CMOS process. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-xiaochen-ni-university-of-washington-title-development-of-topmetalse-cmos-ase-hybrid-detectors-for-neutrino-physics/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251125T160000
DTEND;TZID=UTC:20251125T170000
DTSTAMP:20260414T185732
CREATED:20251120T214845Z
LAST-MODIFIED:20251120T214845Z
UID:3014-1764086400-1764090000@rpm.physics.lbl.gov
SUMMARY:Speaker: Mun Jung Jung (University of Chicago) - Title: Quasielastic–like Interactions of Muon Neutrinos in SBND
DESCRIPTION:Research Progress Meeting \nDate: November 25\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Mun Jung Jung  (University of Chicago) \nTitle: Quasielastic–like Interactions of Muon Neutrinos in SBND \nAbstract: The Short-Baseline Near Detector (SBND)\, the near detector of the Short-Baseline Neutrino (SBN) program at Fermilab\, has completed a successful Run 1\, delivering an unprecedented dataset of neutrino-argon interactions. One of the first targets for SBND is the muon neutrino charged-current quasielastic–like channel\, the dominant exclusive topology in SBN and a sensitive probe of nuclear effects. In this talk\, I’ll present progress toward the first SBND physics results and discuss how the quasielastic-like channel can be studied to test interaction models and lay the foundation for the broader neutrino-nucleus interaction and oscillation physics program at SBND and SBN. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-mun-jung-jung-university-of-chicago-title-quasielastic-like-interactions-of-muon-neutrinos-in-sbnd/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251202T160000
DTEND;TZID=UTC:20251202T170000
DTSTAMP:20260414T185732
CREATED:20251201T144336Z
LAST-MODIFIED:20251201T144336Z
UID:3019-1764691200-1764694800@rpm.physics.lbl.gov
SUMMARY:Speaker: Josef Sorenson (University of New Mexico) - Title: Rare B Meson Decays and Precision Timing for Future Colliders
DESCRIPTION:Research Progress Meeting \nDate: December 2\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Josef Sorenson (University of New Mexico) \nTitle: Rare B Meson Decays and Precision Timing for Future Colliders \nAbstract: Flavor Changing Neutral Currents (FCNCs) are suppressed in the Standard Model (SM). Approximately one in ten billion neutral B mesons decays into pairs of oppositely charged muons. This suppression\, combined with the precise theoretical SM predictions\, makes this decay a promising channel to search for New Physics. I will present progress towards the latest measurement of the decay of B mesons to muon pairs using the ATLAS Run 2 dataset. The High-Luminosity Large Hadron Collider (HL-LHC) provides an excellent opportunity for measuring this channel\, with an expected 3000 fb-1 of p-p collision data. I will present R&D towards precision timing sensors and electronics to deal with the adverse radiation and pileup environments in the HL-LHC and future colliders. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-josef-sorenson-university-of-new-mexico-title-rare-b-meson-decays-and-precision-timing-for-future-colliders/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251204T160000
DTEND;TZID=UTC:20251204T170000
DTSTAMP:20260414T185732
CREATED:20251201T184348Z
LAST-MODIFIED:20251201T184348Z
UID:3022-1764864000-1764867600@rpm.physics.lbl.gov
SUMMARY:Speaker: Brinden Carlson (University of Florida) - Title: Machine Learning Reconstruction Enhancing SBND's Neutrino Physics Program
DESCRIPTION:Research Progress Meeting \nDate: December 4\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Brinden Carlson (University of Florida) \nTitle: Machine Learning Reconstruction Enhancing SBND’s Neutrino Physics Program \nAbstract: The Short-Baseline Near Detector (SBND) is a 100-ton Liquid Argon Time Projection Chamber (LArTPC) neutrino detector in the Booster Neutrino Beam at Fermilab\, part of the Short-Baseline Neutrino program. I will present my work developing and deploying SPINE\, an end-to-end machine learning reconstruction algorithm for neutrino events in LArTPCs. SPINE provides high-quality particle identification and interaction clustering\, enabling precision neutrino-argon cross-section measurements and high-quality neutrino selections for oscillation analyses. I will demonstrate SPINE’s impact through a muon neutrino charged current inclusive selection\, comparing traditional reconstruction methods to the SPINE-based approach\, and discuss how this reconstruction capability supports the SBN program’s physics goals for both cross-section measurements and oscillation analyses. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-brinden-carlson-university-of-florida-title-machine-learning-reconstruction-enhancing-sbnds-neutrino-physics-program/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251209T160000
DTEND;TZID=UTC:20251209T170000
DTSTAMP:20260414T185732
CREATED:20251202T210926Z
LAST-MODIFIED:20251202T210926Z
UID:3026-1765296000-1765299600@rpm.physics.lbl.gov
SUMMARY:Speaker: Kehang Bai (University of Oregon) - Title: Exploring the Dark Sector with Low-Mass\, Long-Lived Dark Photons and the ATLAS Silicon Tracker
DESCRIPTION:Research Progress Meeting \nDate: December 9\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Kehang Bai  (University of Oregon) \nTitle: Exploring the Dark Sector with Low-Mass\, Long-Lived Dark Photons and the ATLAS Silicon Tracker \nAbstract: The rich phenomenology of dark sector models offers exciting opportunities for discovering new physics at the Large Hadron Collider. In this talk\, I will present the first ATLAS search for low-mass\, long-lived dark photons with displaced vertices in the silicon tracker. This novel signature expands sensitivity to regions of parameter space beyond conventional resonance searches. I will highlight the experimental challenges of searching for long-lived particles in the low-mass regime and emphasize the importance of detailed detector understanding. Finally\, I will discuss key aspects of the ATLAS Inner Tracker upgrade for the upcoming high-luminosity era of the Large Hadron Collider. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-kehang-bai-university-of-oregon-title-exploring-the-dark-sector-with-low-mass-long-lived-dark-photons-and-the-atlas-silicon-tracker/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251211T160000
DTEND;TZID=UTC:20251211T170000
DTSTAMP:20260414T185732
CREATED:20251205T194811Z
LAST-MODIFIED:20251205T194811Z
UID:3030-1765468800-1765472400@rpm.physics.lbl.gov
SUMMARY:Speaker: Alexis Mulski (Harvard) - Title: Looking for Unusual Ionization in High-Momentum Particles with the ATLAS Detector at the LHC
DESCRIPTION:Research Progress Meeting \nDate: December 11\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Alexis Mulski\, Harvard University \nTitle: Looking for Unusual Ionization in High-Momentum Particles with the ATLAS Detector at the LHC \nAbstract: What if we could measure the mass of every high momentum charged particle in the ATLAS detector? This talk details the tools in development to make that a reality for tracks associated with a large ionization energy loss (dE/dx). I will place particular emphasis on a new dE/dx measurement from gaseous drift tubes in the ATLAS Muon Spectrometer\, born from a detailed understanding of detector hardware and readout electronics. I will present this measurement alongside other Muon-Spectrometer-based tools that aid us in the hunt for long-lived massive and/or di-charged particles\, including dedicated reconstruction techniques. I will also discuss the progress of the New Small Wheel upgrade of the ATLAS Muon Spectrometer\, and outline the commissioning of the MicroMegas detector trigger in view of the upcoming High-Luminosity LHC era. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-alexis-mulski-harvard-title-looking-for-unusual-ionization-in-high-momentum-particles-with-the-atlas-detector-at-the-lhc/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20251216T160000
DTEND;TZID=UTC:20251216T170000
DTSTAMP:20260414T185732
CREATED:20251210T222923Z
LAST-MODIFIED:20251210T222923Z
UID:3034-1765900800-1765904400@rpm.physics.lbl.gov
SUMMARY:Speaker: Elise Hinkle (University of Chicago) - Title: More than Just a Prototype: How the 2x2 Demonstrator is Essential to DUNE’s Success
DESCRIPTION:Research Progress Meeting \nDate: December 16\, 2025 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Elise Hinkle (University of Chicago) \nTitle: More than Just a Prototype: How the 2×2 Demonstrator is Essential to DUNE’s Success \nAbstract: The Deep Underground Neutrino Experiment (DUNE) is an upcoming long-baseline neutrino experiment with a multitude of physics goals including determining the neutrino mass ordering and searching for CP violation in the lepton sector. In 2024\, the DUNE collaboration collected its first neutrino beam data using the 2×2 Demonstrator\, a prototype for DUNE’s liquid argon near detector (ND-LAr) located in the Neutrinos at the Main Injector (NuMI) beamline at Fermi National Accelerator Laboratory (Fermilab). This talk will explore how these 2×2 data are critical in validating key ND-LAr design choices\, such as the use of liquid argon time-projection chamber (LArTPC) technology\, optically isolated modules\, and pixelated charge readout. Furthermore\, this talk will explain how these 2×2 data are essential in fulfilling ND-LAr’s purpose of reducing beam\, detector\, and cross section systematic uncertainties in DUNE oscillation measurements.\n \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-elise-hinkle-university-of-chicago-title-more-than-just-a-prototype-how-the-2x2-demonstrator-is-essential-to-dunes-success/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260108T160000
DTEND;TZID=UTC:20260108T170000
DTSTAMP:20260414T185732
CREATED:20260102T183558Z
LAST-MODIFIED:20260106T214613Z
UID:3041-1767888000-1767891600@rpm.physics.lbl.gov
SUMMARY:Speaker: Livio Calivers (University of Bern) - Title: Light Detection for Modular Liquid Argon Neutrino Detectors: From Concept to Beam Data in the DUNE Near Detector
DESCRIPTION:Research Progress Meeting \nDate: January 8\, 2026 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Livio Calivers\, University of Bern \nTitle: Light Detection for Modular Liquid Argon Neutrino Detectors: From Concept to Beam Data in the DUNE Near Detector \nAbstract: The Deep Underground Neutrino Experiment (DUNE) aims to perform precision measurements of neutrino oscillations\, which require stringent control of systematic uncertainties at the Near Detector. A major challenge arises from the severe interaction pile-up in liquid-argon time projection chambers operating near the origin of the intense neutrino beam. This talk describes how fast scintillation-light detection is exploited to enhance event reconstruction and interaction timing in the modular Liquid Argon Near Detector (ND-LAr). The design of the ArCLight system is presented—a fully dielectric\, SiPM-based light detector integrated directly into the TPC drift field\, providing efficient photon collection with minimal inactive material. Results from the DUNE 2×2 Demonstrator operated in the NuMI beam at Fermilab include the observation of neutrino interactions and a demonstrated sub-4 ns timing resolution\, sufficient to resolve the accelerator bunch structure and enable in-spill interaction separation. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-livio-calivers-university-of-bern-title-light-detection-for-modular-liquid-argon-neutrino-detectors-from-concept-to-beam-data-in-the-dune-near-detector/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260113T160000
DTEND;TZID=UTC:20260113T170000
DTSTAMP:20260414T185732
CREATED:20260105T173222Z
LAST-MODIFIED:20260105T173222Z
UID:3045-1768320000-1768323600@rpm.physics.lbl.gov
SUMMARY:Speaker: Matthias Vigl (Technical University of Munich) - Title: Machine-Learning Scaling Laws for LHC Physics: How Scale Unlocks Breakthrough Gains in Physics Sensitivity
DESCRIPTION:Research Progress Meeting \nDate: January 13\, 2026 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Matthias Vigl (Technical University of Munich) \nTitle: Machine-Learning Scaling Laws for LHC Physics: How Scale Unlocks Breakthrough Gains in Physics Sensitivity \nAbstract: High Energy Physics and deep learning have historically taken different routes to data processing: in collider physics\, performance has been driven by deep\, hand-engineered pipelines that encode decades of domain knowledge\, while modern machine learning has advanced primarily through scale\, leveraging large datasets and increasingly generic model architectures. While machine learning has long been embedded in the HEP analysis pipeline\, the rate of improvement has remained slower than the rapid\, scale-driven progress observed in industry.\nThis talk contrasts physics-driven and scale-driven approaches to data processing and shows how foundation-model principles (scaling laws\, transfer learning\, and end-to-end optimization) can be applied to HEP analyses. Compute-optimal scaling laws are derived for the state-of-the-art ATLAS jet flavor tagger and validated by training models two orders of magnitude beyond previous compute regimes\, yielding predictable performance improvements in line with industry-scale models. When translated into physics sensitivity for flagship ATLAS analyses such as HH(4b) at the High-Luminosity LHC\, these gains correspond to improvements equivalent to multiple years of data taking\, motivating a shift toward large-scale ML model training and deployment within LHC experiments.\n \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95679892182?pwd=RU5xU2dDRFNabnR1U3pQMklkYWFIdz09 \nMeeting ID: 956 7989 2182 \nPasscode: 169037
URL:https://rpm.physics.lbl.gov/event/speaker-matthias-vigl-technical-university-of-munich-title-machine-learning-scaling-laws-for-lhc-physics-how-scale-unlocks-breakthrough-gains-in-physics-sensitivity/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260122T160000
DTEND;TZID=UTC:20260122T170000
DTSTAMP:20260414T185732
CREATED:20260115T202313Z
LAST-MODIFIED:20260115T202313Z
UID:3053-1769097600-1769101200@rpm.physics.lbl.gov
SUMMARY:Speaker: Daniel Kodroff (LBNL) - Title: New Results on Solar Neutrinos and Light Dark Matter Searches with the LUX-ZEPLIN Experiment
DESCRIPTION:Research Progress Meeting \nDate: January 22\, 2026 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Daniel Kodroff\, LBNL \nTitle: New Results on Solar Neutrinos and Light Dark Matter Searches with the LUX-ZEPLIN Experiment \nAbstract: LUX-ZEPLIN (LZ) is a direct detection dark matter experiment led by Berkeley Lab. Located nearly a mile underground at the Sanford Underground Research Facility in South Dakota\, USA\, LZ employs a 7 tonne active volume of liquid xenon in a dual-phase time projection chamber (TPC). In this talk\, I will discuss the status of the experiment and present recent results on searches for dark matter candidates and coherent elastic neutrino nucleus scattering (CEvNS) from Boron-8 solar neutrinos. I will then discuss the implications of these measurements and the experiment’s future prospects. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-daniel-kodroff-lbnl-title-new-results-on-solar-neutrinos-and-light-dark-matter-searches-with-the-lux-zeplin-experiment/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260129T160000
DTEND;TZID=UTC:20260129T170000
DTSTAMP:20260414T185732
CREATED:20260120T183506Z
LAST-MODIFIED:20260120T183506Z
UID:3056-1769702400-1769706000@rpm.physics.lbl.gov
SUMMARY:Speaker: Vladimir Tishchenko (Brookhaven National Laboratory) - Title: The Muon g-2 Experiment: A Precision Test of the Standard Model
DESCRIPTION:Research Progress Meeting \nDate: January 29\, 2026 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Vladimir Tishchenko\, Brookhaven National Laboratory \nTitle: The Muon g-2 Experiment: A Precision Test of the Standard Model \nAbstract: The anomalous magnetic moment of the muon\, aμ\, is among the most precisely measured quantities in particle physics and a powerful probe of physics within and beyond the Standard Model. The Muon g-2 Experiment at Fermilab was motivated by a long-standing ~3.5σ discrepancy between theory and experiment and aimed to improve the experimental precision by a factor of four. In 2025\, the collaboration reported its final result based on six years of data\, reaching a precision of 127 parts per billion. This talk will summarize the experimental method\, key systematic challenges\, and the final measurement\, and discuss its implications for ongoing efforts at the precision frontier. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-vladimir-tishchenko-brookhaven-national-laboratory-title-the-muon-g-2-experiment-a-precision-test-of-the-standard-model/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20260212T160000
DTEND;TZID=UTC:20260212T170000
DTSTAMP:20260414T185732
CREATED:20260209T013941Z
LAST-MODIFIED:20260209T013941Z
UID:3066-1770912000-1770915600@rpm.physics.lbl.gov
SUMMARY:Speaker: Kirit Karkare (Boston University) - Title: On-Chip Millimeter-Wave Spectroscopy for Line Intensity Mapping: SuperSpec and SPT-SLIM
DESCRIPTION:Research Progress Meeting \nDate: February 12\, 2026 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Kirit Karkare\, Boston University \nTitle: On-Chip Millimeter-Wave Spectroscopy for Line Intensity Mapping: SuperSpec and SPT-SLIM \nAbstract: Answering outstanding questions in cosmology – such as understanding the nature of inflation\, dark energy\, and reionization – requires observations of ever-increasing volumes of the universe. In this talk I will discuss how we can use line intensity mapping (LIM) of far-IR emission lines to measure large volumes at high redshift. This technique is enabled by advances in millimeter-wave spectrometer technology. I will present two on-chip spectrometer projects: SuperSpec\, which pioneered the concept and was deployed to the Large Millimeter Telescope\, and SPT-SLIM\, a pathfinder LIM experiment at the South Pole. Both projects saw first light in 2025. I will discuss what we’re learning from their first observations and outline the path towards large\, dense focal planes with the sensitivity required for next-generation cosmology. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-kirit-karkare-boston-university-title-on-chip-millimeter-wave-spectroscopy-for-line-intensity-mapping-superspec-and-spt-slim/
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BEGIN:VEVENT
DTSTART;TZID=UTC:20260219T160000
DTEND;TZID=UTC:20260219T170000
DTSTAMP:20260414T185732
CREATED:20260210T182347Z
LAST-MODIFIED:20260210T182347Z
UID:3072-1771516800-1771520400@rpm.physics.lbl.gov
SUMMARY:Speaker: Jamie Bock (JPL) - Title: Spectrally Mapping the Sky with SPHEREx
DESCRIPTION:Research Progress Meeting \nDate: February 19\, 2026 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Jamie Bock\, JPL \nTitle: Spectrally Mapping the Sky with SPHEREx \nAbstract: Launched in March 2025\, SPHEREx is an all-sky spectral survey satellite designed to address three science goals with a single instrument\, a wide-field imager. SPHEREx probes the physics of inflation through measurements of non-Gaussianity by studying large-scale structure\, surveying a large cosmological volume at low redshifts. The program charts the origin and history of galaxy formation by mapping large-scale spatial power in two deep fields located near the ecliptic poles. SPHEREx also investigates the origin of water and biogenic molecules in the early phases of planetary system formation – from molecular clouds to young stellar systems with protoplanetary disks – by measuring ice absorption spectra. Following in the tradition of all-sky missions\, SPHEREx will be the first all-sky near-infrared spectral survey\, producing four complete all-sky maps that will serve as a rich archive for the astronomy community. With over a billion detected galaxies\, hundreds of millions of high-quality stellar and galactic spectra\, and over a million ice absorption spectra\, the archive will enable diverse scientific investigations across astronomy. Our two-year mission recently completed its first map of the full sky. I will share the performance of the instrument in flight and some early results. \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-jamie-bock-jpl-title-spectrally-mapping-the-sky-with-spherex/
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