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DTSTART:20230101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20240118T160000
DTEND;TZID=UTC:20240118T170000
DTSTAMP:20260414T183746
CREATED:20240111T171253Z
LAST-MODIFIED:20240111T171253Z
UID:2471-1705593600-1705597200@rpm.physics.lbl.gov
SUMMARY:Speaker: Joseph Bramante (Queen's University) - Title: Back to the Future With High Mass Dark Matter
DESCRIPTION:Research Progress Meeting \nDate: January 18\, 2024 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Joseph Bramante (Queen’s University) \nTitle: Back to the Future With High Mass Dark Matter \nAbstract: A number of theories predict that dark matter is a supermassive particle or composite state. Discovering dark matter in this high mass regime requires different approaches. I will survey recent developments\, including composite dark matter that produces unique signatures in underground experiments\, dark matter detectable through its fusion of nuclei in Antarctic ice\, and halo substructures heating neutron stars. I will also survey certain experiments from the 80s and 90s\, which still provide the best sensitivity to many varieties of high mass dark matter. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-joseph-bramante-queens-university-title-back-to-the-future-with-high-mass-dark-matter/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231219T160000
DTEND;TZID=UTC:20231219T170000
DTSTAMP:20260414T183746
CREATED:20231214T175021Z
LAST-MODIFIED:20231214T175021Z
UID:2456-1703001600-1703005200@rpm.physics.lbl.gov
SUMMARY:Speaker: Emily Perry (UCL) - Title: Towards the discovery of galactic dark matter: the LZ experiment and beyond
DESCRIPTION:Research Progress Meeting \nDate: December 19\, 2023 \nTime: 4:00- 5:00 pm  \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Emily Perry (UCL) \nTitle: Towards the discovery of galactic dark matter: the LZ experiment and beyond\n \nAbstract: \nThe discovery of the nature of dark matter is internationally recognised as one of the highest priorities in science. Its discovery would bring forward a new era in physics and astronomy\, simultaneously solving the near 100 year old missing mass problem and delivering the first evidence of physics Beyond the Standard Model (BSM). Dual phase xenon (Xe) time projection chambers (TPCs) have been dominating the search for dark matter for the past 10 years. Now not only targeting WIMPs of mass > 3 GeV/c2\, but due to their scalability and advanced technologies\, boast world leading sensitivity to other BSM-physics and rare or exotic neutrino physics. \nThe LUX ZEPLIN (LZ) dark experiment operates at the Sanford Underground Research Facility in South Dakota and is the most sensitive and largest of all Xe TPCs ever constructed. In its first science run of only 60-livedays the experiment has set the world-leading constraints on the existence of WIMPs down to a mass of 9 GeV/c2. This seminar will highlight some of the key work that has led to this result with focus on some of my specific contributions. Giving an exciting glimpse of what the future holds for LZ\, I will present the innovative work that is being done on the ramp up to the next science results. I will also discuss both the short and long term future of LZ and the path to an historic dark matter discovery. \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-emily-perry-ucl-title-towards-the-discovery-of-galactic-dark-matter-the-lz-experiment-and-beyond/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231214T160000
DTEND;TZID=UTC:20231214T170000
DTSTAMP:20260414T183746
CREATED:20231208T155108Z
LAST-MODIFIED:20231208T155108Z
UID:2451-1702569600-1702573200@rpm.physics.lbl.gov
SUMMARY:Speaker: Deion Fellers (University of Oregon) - Title: FASER’s Search for Dark Photons and Neutrinos
DESCRIPTION:Research Progress Meeting \nDate: December 14\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Deion Fellers (University of Oregon) \nTitle: FASER’s Search for Dark Photons and Neutrinos\n \nAbstract: FASER is an experiment at the LHC that is designed to search for light\, weakly-interacting particles produced in the far-forward direction from proton-proton collisions at the ATLAS interaction point (IP1). The detector is positioned 480 m downstream of IP1 and aligned with the beam collision axis\, where particles must traverse LHC magnets and approximately 100 m of rock and concrete before reaching FASER. The novel location of the experiment provides both a low background environment and a high-intensity flux of long-lived particles. This talk will provide an overview of the FASER detector and present our first physics results\, where we used a dataset collected at center-of-mass energy √s =13.6 TeV in 2022\, during LHC Run 3\, to directly observe neutrino interactions at a particle collider experiment for the first time and also to probe previously unconstrained phase space of the dark photon with couplings ϵ∼10−5−10−4 and masses ∼10 MeV – 100 MeV. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-deion-fellers-university-of-oregon-title-fasers-search-for-dark-photons-and-neutrinos/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231212T130000
DTEND;TZID=UTC:20231212T140000
DTSTAMP:20260414T183746
CREATED:20231207T173255Z
LAST-MODIFIED:20231207T173307Z
UID:2447-1702386000-1702389600@rpm.physics.lbl.gov
SUMMARY:Speaker: Christina Wang (Cal Tech) - Title: Search for New Physics with CMS and Quantum Sensors
DESCRIPTION:Research Progress Meeting \nDate: December 12\, 2023 \nTime: 1:00- 2:00 pm  \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Christina Wang (Cal Tech) \nTitle: Search for New Physics with CMS and Quantum Sensors\n \nAbstract: \nI will present two new highly complementary approaches to search for physics beyond the Standard Model. The searches are enabled by a first-of-its kind reconstruction technique to search for long-lived particles (LLPs) using the Compact Muon Solenoid (CMS) and by new advances in quantum sensing technology to search for axions. \nI will first discuss a search for physics beyond the Standard Model by searching for LLPs using a novel technique to reconstruct decays of LLPs in the CMS muon detectors. The innovative LLP reconstruction technique has been shown to be sensitive to a broad range of LLP decay modes and to LLP masses below GeV. The search yields competitive sensitivity for proper lifetime from 0.1m to 1000m with the full Run2 dataset recorded at the LHC. \nIn the second part of the talk\, I will discuss searching for axions with a low noise quantum sensor\, SNSPDs (superconducting nanowire single photon detectors). The BREAD (Broadband Reflector Experiment for Axion Detection) experiment searches for axions or dark photons using a parabolic mirror to focus axion-converted photons to the SNSPDs. The SNSPDs allow us to be sensitive to 0.04 – 1 eV axions and dark photons\, due to their sensitivity to 0.04 – 1 eV photons. In this talk\, I will present the progress towards a first stage dark photon pilot experiment with a focus on SNSPD characterization. \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-christina-wang-cal-tech-title-search-for-new-physics-with-cms-and-quantum-sensors/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231207T160000
DTEND;TZID=UTC:20231207T170000
DTSTAMP:20260414T183746
CREATED:20231201T191816Z
LAST-MODIFIED:20231201T191816Z
UID:2442-1701964800-1701968400@rpm.physics.lbl.gov
SUMMARY:Speaker: Gerrit Farren (Cambridge) - Title: The Atacama Cosmology Telescope: Probing the large scale structure with ACT DR6 CMB lensing and cross-correlation with unWISE
DESCRIPTION:Research Progress Meeting \nDate: December 7\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Gerrit Farren (Cambridge) \nTitle: The Atacama Cosmology Telescope: Probing the large scale structure with ACT DR6 CMB lensing and cross-correlation with unWISE\n \nAbstract: I will present work on probing the large scale structure of the universe using CMB lensing from the upcoming Data Release 6 of the Atacama Cosmology Telescope (ACT) and cross-correlations with galaxies from the unWISE galaxy catalog. My talk will focus on how our highly competitive constraints from CMB lensing cross-correlations can provide insight into the widely discussed “S8/sigma8 tension”. For this purpose I will briefly introduce the high fidelity CMB lensing reconstruction obtained by the ACT Collaboration and results from the analysis of the lensing auto-correlation. I will discuss results from the cross-correlation between ACT CMB lensing and unWISE galaxies\, highlighting improvements to the analysis pipeline compared to previous work on the cross-correlation between Planck CMB lensing and unWISE by some of my collaborators (Krolewski et al. 2021). I will also touch on our recent work to extend such cross-correlation analyses beyond two-point correlations using the first detection of the galaxy-galaxy-CMB lensing bispectrum. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-gerrit-farren-cambridge-title-the-atacama-cosmology-telescope-probing-the-large-scale-structure-with-act-dr6-cmb-lensing-and-cross-correlation-with-unwise/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231205T160000
DTEND;TZID=UTC:20231205T170000
DTSTAMP:20260414T183746
CREATED:20231127T222112Z
LAST-MODIFIED:20231127T222112Z
UID:2436-1701792000-1701795600@rpm.physics.lbl.gov
SUMMARY:Speaker: Michael Williams (University of Michigan) - Title: Searches for Particle Dark Matter with LZ and TESSERACT
DESCRIPTION:Research Progress Meeting \nDate: December 5\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Michael Williams (University of Michigan) \nTitle: Searches for Particle Dark Matter with LZ and TESSERACT\n \nAbstract: The search for particle dark matter is one of the primary challenges in modern physics. Direct detection experiments typically rely on measuring signals produced when dark matter particles recoil off a detector target. In this talk\, I will first discuss the LUX-ZEPLIN (LZ) experiment\, which uses a dual-phase xenon time projection chamber to look for WIMP dark matter that recoils off the xenon nucleus. I will discuss LZ detector construction\, first WIMP search results\, and limits on effective field theory (EFT) searches of dark matter. I will then discuss the search for low-mass dark matter with TESSERACT; this encompasses interactions with two types of novel\, ultra-sensitive detectors – SPICE and HeRALD. Both SPICE and HeRALD use transition edge sensors (TESs) for cryogenic readout\, while using different targets: polar crystals and superfluid helium-4\, respectively. I will describe the development and first measurements of new Iridium-Platinum (IrPt) TESs and the commissioning of the new HeRALD detector at LBNL. \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-michael-williams-university-of-michigan-title-searches-for-particle-dark-matter-with-lz-and-tesseract/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231130T160000
DTEND;TZID=UTC:20231130T170000
DTSTAMP:20260414T183746
CREATED:20231127T190021Z
LAST-MODIFIED:20231127T190021Z
UID:2433-1701360000-1701363600@rpm.physics.lbl.gov
SUMMARY:Speaker: Michael MacKenzie (Northwestern University) - Title: Searches for Charged Lepton Flavor Violation at CMS and Mu2e
DESCRIPTION:Research Progress Meeting \nDate: November 30\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Michael MacKenzie (Northwestern University) \nTitle: Searches for Charged Lepton Flavor Violation at CMS and Mu2e\n \nAbstract: Neutrino oscillations have shown that lepton flavor is not a conserved quantity. Charged lepton flavor violation (CLFV) is suppressed by the small neutrino masses well below what is experimentally observable\, though new physics models predict higher rates of CLFV. I will discuss a current search at the CMS experiment for the CLFV decay of the Z boson\, focusing on the search for Z→e µ. I will also discuss the upcoming search for CLFV µ− → e− conversion at the Mu2e experiment at FNAL. The Mu2e experiment aims to improve the sensitivity to µ− → e− conversion by a factor of 10\,000. I will present the expected µ− → e− conversion sensitivity during Run 1 at Mu2e. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-michael-mackenzie-northwestern-university-title-searches-for-charged-lepton-flavor-violation-at-cms-and-mu2e/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231128T160000
DTEND;TZID=UTC:20231128T170000
DTSTAMP:20260414T183746
CREATED:20231121T013415Z
LAST-MODIFIED:20231127T165301Z
UID:2426-1701187200-1701190800@rpm.physics.lbl.gov
SUMMARY:Speaker: Lee Hagaman (University of Chicago) – Title: Investigating Short-Baseline Neutrino Anomalies Using MicroBooNE
DESCRIPTION:Research Progress Meeting \nDate: November 28\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Lee Hagaman (University of Chicago) \nTitle: Investigating Short-Baseline Neutrino Anomalies Using MicroBooNE\n \nAbstract: The MicroBooNE experiment is a liquid argon time projection chamber (LArTPC) in the Booster Neutrino Beam at Fermilab. One of its primary goals is to address the 4.8 sigma MiniBooNE Low Energy Excess (LEE). Leveraging the unique capabilities of LArTPC technology to identify hadronic activity and separate photon and electron showers\, MicroBooNE has achieved a search for an electron neutrino excess (potentially due to a sterile neutrino)\, as well as a search for a single photon excess from neutral current Delta radiative decays. In this talk\, we will present a comprehensive overview of these results\, as well as recent advancements toward new searches for single photons and electron-positron pairs as explanations of the MiniBooNE LEE. These include a more sensitive search for Delta radiative decays\, a search for coherent-like single photon production\, an inclusive single photon search\, and searches for electron-positron pairs from dark sector models. \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-lee-hagaman-university-of-chicago-title-investigating-short-baseline-neutrino-anomalies-using-microboone/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231121T160000
DTEND;TZID=UTC:20231121T170000
DTSTAMP:20260414T183746
CREATED:20231115T182235Z
LAST-MODIFIED:20231121T014055Z
UID:2420-1700582400-1700586000@rpm.physics.lbl.gov
SUMMARY:Speaker: Roohi Dalal (Princeton) - Title: New Cosmology Constraints from the Hyper Suprime-Cam Year 3 Data Release
DESCRIPTION:Research Progress Meeting \nDate: November 21\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Roohi Dalal (Princeton) \nTitle: New Cosmology Constraints from the Hyper Suprime-Cam Year 3 Data Release\n \nAbstract: The Hyper Suprime-Cam (HSC) survey is the deepest present-day weak lensing experiment\, going to ~26 mag with exquisite image quality. This combination of depth and image quality achieved by HSC allows us to probe cosmology using weak gravitational lensing up to high redshifts\, and these analyses serve as important preparatory studies for the next generation of weak lensing surveys\, particularly the Vera C. Rubin Observatory. I will discuss our constraints on cosmological parameters using weak lensing cosmic shear power spectra measured from the Year 3 shear catalog of HSC\, covering 416 square degrees of the northern sky. I will describe our cosmological analysis\, including the steps we take to prevent confirmation bias as well as our modeling of various systematic effects. The quantity best constrained by our analysis is the parameter S8\, which describes the clumpiness of the matter distribution in the universe. From our analysis\, and other weak lensing analyses with different surveys\, there is a 2-3 sigma detection of a tension in the S8 measurements from weak lensing and those from the cosmic microwave background. While this could suggest that our cosmological model is incomplete\, I will discuss ongoing and future work that can further shed light on this tension\, including an improved modeling of baryonic feedback at small scales. \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-roohi-dalal-princeton-title-new-cosmology-constraints-from-the-hyper-suprime-cam-year-3-data-release/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231114T160000
DTEND;TZID=UTC:20231114T170000
DTSTAMP:20260414T183746
CREATED:20231110T142220Z
LAST-MODIFIED:20231110T142517Z
UID:2412-1699977600-1699981200@rpm.physics.lbl.gov
SUMMARY:Speaker: Aleksandra Kusiak (Columbia) - Title: Probing the Ionized Gas Thermodynamics in Distant Galaxies with the Sunyaev-Zel’dovich Effect
DESCRIPTION:Research Progress Meeting \nDate: November 14\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Aleksandra Kusiak (Columbia) \nTitle: Probing the Ionized Gas Thermodynamics in Distant Galaxies with the Sunyaev-Zel’dovich Effect\n \nAbstract: The Sunyaev-Zel’dovich Effect—the Doppler boost of low-energy Cosmic Microwave Background photons scattering off free electrons in galaxies and clusters in the late Universe—is an excellent probe of ionized gas residing in distant galaxies. Its two main constituents are the kinematic SZ effect (kSZ)\, where electrons have a non-zero line-of-sight (LOS) velocity and which probes the electron momentum\, and the thermal SZ effect (tSZ)\, where electrons have high energies due to their temperature\, and which probes the electron integrated pressure. These two effects provide complementary information necessary to constrain the thermodynamic profile of gas residing in distant galaxies\, which can be further used to understand feedback processes\, a necessary ingredient to describe the evolution of the large-scale structure in our Universe and galaxy formation. Both tSZ and kSZ can be measured in cross-correlation with large-scale structure\, e.g.\, galaxies. \nIn this talk\, I will discuss my past and ongoing measurements of the SZ-galaxy cross-correlations with unWISE galaxies\, including the projected-fields kSZ. unWISE is a galaxy catalog containing over 500 million galaxies on the full sky and consists of three subsamples of mean redshifts z=0.5\, 1.1\, 1.5\, whose halo occupation distribution I have already constrained. If time permits\, I will also present my ongoing work on mitigating foregrounds in the SZ cross-correlations\, particularly the Cosmic Infrared Background (CIB). \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-aleksandra-kusiak-columbia-title-probing-the-ionized-gas-thermodynamics-in-distant-galaxies-with-the-sunyaev-zeldovich-effect/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231107T160000
DTEND;TZID=UTC:20231107T170000
DTSTAMP:20260414T183746
CREATED:20231103T182232Z
LAST-MODIFIED:20231103T182528Z
UID:2405-1699372800-1699376400@rpm.physics.lbl.gov
SUMMARY:Speakers: Career Panel (LBNL) - Title: How to land a faculty position: A panel discussion with career scientists in the physics division
DESCRIPTION:Research Progress Meeting \nDate: November 7\, 2023 \nTime: 4:00- 5:00 pm \nLocation: B50 Auditorium [In-Person and HYBRID]  \nSpeakers: Career Panel \nTitle: How to land a faculty position: A panel discussion with career scientists in the physics division \nAbstract: In this panel discussion postdocs and students will have the opportunity to ask career division members about how the faculty hiring process typically works in labs and universities and how to put together a winning faculty application. This year’s panelists will be \n\nNatalie Roe (Associate Lab Director)\nDean Robinson (Theory)\nMarjorie Shapiro (ATLAS)\nSimone Ferraro (Cosmology)\nKevin Lesko (LZ)\n\nTogether they have about a century worth of experience with hiring panels\, in a variety of fields and settings (universities + laboratories). Most of the time will be reserved for interactions with the audience\, so bring along all your questions about finding permanent positions in academia. \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/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231026T160000
DTEND;TZID=UTC:20231026T170000
DTSTAMP:20260414T183746
CREATED:20231024T132942Z
LAST-MODIFIED:20231024T132942Z
UID:2398-1698336000-1698339600@rpm.physics.lbl.gov
SUMMARY:Speaker: Kelly Stifter (Fermilab) - Title: Leveraging quantum sensors to shine new light on searches for low-mass dark matter
DESCRIPTION:Research Progress Meeting \nDate: October 26\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Kelly Stifter (Fermilab) \nTitle: Leveraging quantum sensors to shine new light on searches for low-mass dark matter\n \nAbstract: While dark matter accounts for approximately 85% of the mass in the universe\, its physical nature remains one of the most pressing open questions in the field of physics. Three decades of experiments have been searching for dark matter interactions over a wide range of candidate dark matter masses and all have come up empty-handed. Nevertheless\, there remain large swaths of unexplored\, well-motivated particle dark matter models that are currently inaccessible through existing detector technologies. One path to probe these remaining particle dark matter models is through the use of low-threshold quantum sensors. In this talk\, I will review the landscape of dark matter direct detection\, outline the potential role of quantum sensors in particle detection\, and detail the early results from a calibration system critical to realizing these individual devices as fully-fledged experiments. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-kelly-stifter-fermilab-title-leveraging-quantum-sensors-to-shine-new-light-on-searches-for-low-mass-dark-matter/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231019T160000
DTEND;TZID=UTC:20231019T170000
DTSTAMP:20260414T183746
CREATED:20231016T160040Z
LAST-MODIFIED:20231016T160040Z
UID:2394-1697731200-1697734800@rpm.physics.lbl.gov
SUMMARY:Speaker: Joshua Batson (Anthropic AI) - Title: More is Different: Generalization in Large (Language) Models
DESCRIPTION:Research Progress Meeting \nDate: October 19\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Joshua Batson (Anthropic AI) \nTitle: More is Different: Generalization in Large (Language) Models\n \nAbstract: Specialized machine learning models have been successfully applied in science and industry for decades. In recent years\, a new paradigm has emerged: very large models trained on highly diverse training data have demonstrated remarkable capabilities across hundreds of tasks. Many billions of dollars have since been invested in training and deploying such models. In this talk\, I will review some of these developments with a focus on the phenomenon of generalization: as models scale\, what changes? What do we know about the internal functioning of these models and how that emerges during training? What does this portend for the future? I will finally speculate\, with audience participation\, on three potential relationships with physics: the ‘physics’ of model training\, the use of models as scientific assistants\, and the direct use of models to study physical phenomena. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-joshua-batson-anthropic-ai-title-more-is-different-generalization-in-large-language-models/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231012T160000
DTEND;TZID=UTC:20231012T170000
DTSTAMP:20260414T183746
CREATED:20231006T163756Z
LAST-MODIFIED:20231006T163829Z
UID:2390-1697126400-1697130000@rpm.physics.lbl.gov
SUMMARY:Speaker: Luke Kelley (UC Berkeley) - Title: Nanohertz Gravitational Waves: Exploring the most massive black holes in the Universe
DESCRIPTION:Research Progress Meeting \nDate: October 12\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Luke Kelley (UC Berkeley) \nTitle: Nanohertz Gravitational Waves: Exploring the most massive black holes in the Universe\n \nAbstract: Earlier this year NANOGrav\, along with other pulsar timing arrays\, announced strong evidence for a stochastic gravitational wave (GW) background at nanohertz frequencies. For decades\, such a signal has been predicted from binaries of supermassive black holes (SMBHs). I will present NANOGrav’s recent data and our interpretation of the signal as produced by SMBH binaries. I will show that these GWs encode a wealth of new information about SMBH formation and evolution. Now\, the race is on for the next expected measurements: detection of anisotropy in the GW background\, and individual loud binaries. These measurements would confirm the origin of the GWs\, provide a crucial testbed for the future LISA mission\, and open a new multi-messenger window into the Universe. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-luke-kelley-uc-berkeley-title-nanohertz-gravitational-waves-exploring-the-most-massive-black-holes-in-the-universe/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20231005T160000
DTEND;TZID=UTC:20231005T170000
DTSTAMP:20260414T183746
CREATED:20231002T165452Z
LAST-MODIFIED:20231002T165452Z
UID:2386-1696521600-1696525200@rpm.physics.lbl.gov
SUMMARY:Speaker: Jure Zupan (University of Cincinnati) - Title: From quarks and gluons to hadrons
DESCRIPTION:Research Progress Meeting \nDate: October 5\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Jure Zupan (University of Cincinnati) \nTitle: From quarks and gluons to hadrons\n \nAbstract: Monte Carlo event generators for particle collisions are composed of three block\, the calculations of hard matrix elements\, parton shower\, and hadronization. While the first two are theoretically under good control and systematically improvable using perturbative techniques\, hadronization relies on the use of phenomenological models. I will review the first attempts to use Machine Learning architectures to describe hadronization\, with the ultimate goal to train directly on data. The first practical side product of this effort is an algorithm for faster evaluation of uncertainties associated with the Lund string model implemented in Pythia. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-jure-zupan-university-of-cincinnati-title-from-quarks-and-gluons-to-hadrons/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230928T160000
DTEND;TZID=UTC:20230928T170000
DTSTAMP:20260414T183746
CREATED:20230920T231427Z
LAST-MODIFIED:20230920T231427Z
UID:2379-1695916800-1695920400@rpm.physics.lbl.gov
SUMMARY:Speaker: Chris Polly (Fermilab) - Title: New results from the Fermilab Muon g-2 Experiment
DESCRIPTION:Research Progress Meeting \nDate: September 28\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Chris Polly (Fermilab) \nTitle: New results from the Fermilab Muon g-2 Experiment\n \nAbstract: The Muon g-2 collaboration recently published their latest results for the determination of the anomalous magnetic moment of the muon. This result is a factor of two more precise than prior experiments and is in good agreement with past determinations. A description of the experimental result\, future plans\, and a discussion of the theory will be presented. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-chris-polly-fermilab-title-new-results-from-the-fermilab-muon-g-2-experiment/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230926T160000
DTEND;TZID=UTC:20230926T160000
DTSTAMP:20260414T183746
CREATED:20230920T211601Z
LAST-MODIFIED:20230920T232452Z
UID:2371-1695744000-1695744000@rpm.physics.lbl.gov
SUMMARY:Speaker: Jia Liu (Kavli IPMU University of Tokyo) - Title: Neutrinos\, baryons\, cosmic web\, and COVID19
DESCRIPTION:Research Progress Meeting \nDate: September 26\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Jia Liu (Kavli IPMU University of Tokyo) \nTitle: Neutrinos\, baryons\, cosmic web\, and COVID19\n \nAbstract: This won’t be your usual seminar\, but rather a report back since I left Berkeley two years ago. Despite barely having made it to campus or the lab due to mat leave + COVID\, I managed to work with many Berkeley people on various projects\, almost all of which happened serendipitously. I will touch upon the topics mentioned in the title. I will also discuss prospects for Stage IV cosmology\, in terms of joint simulations and analysis with CMB and LSS surveys. \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-jia-liu-kavli-ipmu-university-of-tokyo-title-neutrinos-baryons-cosmic-web-and-covid19/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230921T160000
DTEND;TZID=UTC:20230921T170000
DTSTAMP:20260414T183746
CREATED:20230915T213543Z
LAST-MODIFIED:20230915T213543Z
UID:2376-1695312000-1695315600@rpm.physics.lbl.gov
SUMMARY:Speaker: Naoko Kurahashi Neilson (Drexel) - Title: Neutrino Astronomy\, From Dream to Reality
DESCRIPTION:Research Progress Meeting \nDate: September 21\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Naoko Kurahashi Neilson (Drexel) \nTitle: Neutrino Astronomy\, From Dream to Reality\n \nAbstract: The Universe has been studied using light since the dawn of astronomy\, when starlight captured the human eye. The IceCube Neutrino Observatory\, located at the geographic South Pole\, observes the Universe in a different and unique way: in high-energy neutrinos. IceCube’s discovery in 2013 of a diffuse celestial neutrino radiation started an era of neutrino astronomy. Searches for astronomical sources responsible for creating these neutrinos have covered broad source types while combating background event rates that are 6 orders of magnitude higher. This year\, the first observation of our own Milky Way galaxy in neutrinos was announced in June. This talk will cover how this observation was made\, other milestone observations by IceCube\, and the state of neutrino astronomy. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-naoko-kurahashi-neilson-drexel-title-neutrino-astronomy-from-dream-to-reality/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230914T160000
DTEND;TZID=UTC:20230914T170000
DTSTAMP:20260414T183746
CREATED:20230914T210259Z
LAST-MODIFIED:20230914T210259Z
UID:2366-1694707200-1694710800@rpm.physics.lbl.gov
SUMMARY:Speaker: Uros Seljak (LBNL) - Title: AI for Physics\, Physics for AI
DESCRIPTION:Research Progress Meeting \nDate: September 14\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Uros Seljak (LBNL) \nTitle: AI for Physics\, Physics for AI\n \nAbstract: Artificial Intelligence (Machine Learning) is revolutionizing many aspects of our life\, but its success stories in physics and astronomy are rare and limited to a few subfields only. I will argue that this is because physics applications require development of physics specific AI methods\, rather than using off the shelf methods from the AI community. A few examples of physics specific nature of the data are large dimensionality of the data\, stochastic nature of the data\, and symmetries. I will argue that learning the data structures first using generative learning approaches such as Normalizing Flows enables not only better learning\, but also provides additional information on robustness\, such as anomaly detection. These methods applied to cosmology data show the promise of up to an order of magnitude improvement relative to traditional methods. Physics ideas have also influenced the development of AI\, and many of these have been based on stochastic processes and sampling. I will discuss recently developed MicroCanonical Hamiltonian and Langevin Monte Carlo\, which are a new class of sampling methods that outperform previous state of the art such as Hamiltonian Monte Carlo\, in some cases by orders of magnitude. These new sampling methods will in turn enable solutions of physics problems that were not possible before\, in a wide range of fields from cosmology to lattice QCD. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-uros-seljak-lbnl-title-ai-for-physics-physics-for-ai/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230907T160000
DTEND;TZID=UTC:20230907T170000
DTSTAMP:20260414T183746
CREATED:20230828T173405Z
LAST-MODIFIED:20230828T175903Z
UID:2353-1694102400-1694106000@rpm.physics.lbl.gov
SUMMARY:Speaker: Paul Stankus (Brookhaven National Laboratory) - Title: Quantum-Enhanced Astronomy For Both Fun and Profit
DESCRIPTION:Research Progress Meeting \nDate: September 7\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Paul Stankus (Brookhaven National Laboratory) \nTitle: Quantum-Enhanced Astronomy for Both Fun and Profit\n \nAbstract: Quantum devices are finding their way to improving many kinds of technologies\, at an increasing pace. We will review ideas for how astronomical measurements\, particularly using interferometers\, can be improved — in some cases greatly so — through the new application of quantum devices such as quantum memories\, single-photon sources\, quantum repeaters\, quantum teleportation\, and more. Then we will take a look at active experimental work in this area and prospects for near-future instruments. Lastly\, we will discuss interesting astrophysical observations that could be enabled by quantum enhancement\, including distance ladder measurements\, exoplanet spectra\, and even low-frequency gravitational waves\, among others. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09\n\nMeeting ID: 988 5432 2464\n\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-paul-stankus-brookhaven-national-laboratory-title-quantum-enhanced-astronomy-for-both-fun-and-profit/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230815T160000
DTEND;TZID=UTC:20230815T170000
DTSTAMP:20260414T183746
CREATED:20230808T181009Z
LAST-MODIFIED:20230808T183452Z
UID:2335-1692115200-1692118800@rpm.physics.lbl.gov
SUMMARY:Speaker: Sinead Griffin ( LBL)- Title: Party like it's LK99?
DESCRIPTION:Research Progress Meeting \nDate: August 15\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Sinead Griffin (LBL) \nTitle: Party like it’s LK99?\n \nAbstract: A recent report of room temperature superconductivity at ambient pressure in Cu-substituted apatite (`LK99′) has invigorated interest in the understanding of what systems and mechanisms allow for high-temperature superconductivity. In this talk\, I will describe my recent work on identifying the origins of correlated isolated flat bands at the Fermi level in lk99\, a common signature of high transition temperatures in already-established families of superconductors. I elucidate the origins of these isolated bands as arising from a structural distortion induced by the Cu ions and a chiral charge density wave from the Pb lone pairs. These results suggest that a minimal two-band model can encompass much of the low-energy physics in this system. Finally\, I discuss the implications of my results on possible superconductivity in Cu-doped apatite. \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-sinead-griffin-lbl-title-party-like-its-lk99/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230622T160000
DTEND;TZID=UTC:20230622T170000
DTSTAMP:20260414T183746
CREATED:20230620T213629Z
LAST-MODIFIED:20230620T213629Z
UID:2326-1687449600-1687453200@rpm.physics.lbl.gov
SUMMARY:Speaker: Kerstin Tackmann-Title: Higgs measurements at ATLAS
DESCRIPTION:Research Progress Meeting \n \nDate: June 22\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Kerstin Tackmann \nTitle: Higgs measurements at ATLAS\n \nAbstract: In summer 2012\, the ATLAS and CMS experiments at the Large Hadron Collider\nannounced the discovery of a new particle\, with properties consistent with\nthose expected from the Standard Model Higgs boson. Since then\, its properties\nand its interactions with other particles have been studied by both experiments\nusing the data that have been collected up to 2018\, increasing the number of\nHiggs bosons produced by a factor of 36. This talk gives an overview of recent\nresults from the ATLAS experiment\, focusing on the results obtained on that\ndataset and mentioning briefly new results obtained using the data collected\nin 2022. To date\, all measurements have been found to be consistent with the\npredictions of the Standard Model of particle physics.\n \nJoin Zoom Meeting \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-kerstin-tackmann-title-higgs-measurements-at-atlas/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230615T160000
DTEND;TZID=UTC:20230615T170000
DTSTAMP:20260414T183746
CREATED:20230612T184303Z
LAST-MODIFIED:20230613T181700Z
UID:2321-1686844800-1686848400@rpm.physics.lbl.gov
SUMMARY:Speaker: Frank Tackmann-Title: "Theory uncertainties and correlations in perturbative predictions  "
DESCRIPTION:Research Progress Meeting \n \nDate: June 15\, 2023 \nTime: 4:00- 5:00 pm \nLocation: Sessler Conference Room- 50A-5132 [In-Person and HYBRID]  \nSpeaker: Frank Tackmann \nTitle: Theory uncertainties and correlations in perturbative predictions\n \nAbstract: Theoretical predictions that are used in interpreting experimental\nmeasurements require reliable uncertainties and correlations.\nHowever\, the prevalent method to estimate uncertainties in perturbative\npredictions in high-energy physics\, based on varying unphysical scales\, lacks\nboth reliability and the ability to correctly treat correlations.\nThis is a severe limitation in precision studies where theory uncertainties\nare of comparable size to experimental ones.\nI will highlight a couple of such examples\, including determining\nHiggs couplings to bottom and charm from the Higgs pT spectrum\, a recent\ndetermination of the strong coupling from the Drell-Yan pT spectrum by ATLAS\,\nand the measurement of the W-boson mass at hadron colliders.\nI will give a conceptual overview of theory uncertainties and our current\nestimation methods at a non-technical level accessible to non-experts.\nFinally\, I will discuss the development of a new concept of theory nuisance\nparameters\, which promises to overcome (most of) the limitations of scale\nvariations.\n \nJoin Zoom Meeting \nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-frank-tackmann-title-theory-uncertainties-and-correlations-in-perturbative-predictions/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230608T160000
DTEND;TZID=UTC:20230608T170000
DTSTAMP:20260414T183746
CREATED:20230531T192510Z
LAST-MODIFIED:20230531T192533Z
UID:2312-1686240000-1686243600@rpm.physics.lbl.gov
SUMMARY:Speaker: Frances Houle ( LBNL)-Title: A Modern Understanding of Ethics in Physics
DESCRIPTION:This is an In-Person [HYBRID] Event \nDate: JUNE 8\, 2023 \nLocation: Sessler Conference Room – 50A-5-5132 \nSPEAKER: Frances Houle (LBNL) \nTITLE: A Modern Understanding of Ethics in Physics\n \nABSTRACT: What are considered ethical principles and ethical behavior in physics have evolved considerably in the past 20 years. In this talk I will describe the history and changes in thinking\, as well as the role of the American Physical Society in the process. The community has come to appreciate the crucial importance of professional pressures in unethical behavior\, leading to newly focused thinking about how physics and other scientific professions might aspects of their cultures and improve ethics awareness and education. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-frances-houle-lbnl-title-a-modern-understanding-of-ethics-in-physics/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230601T160000
DTEND;TZID=UTC:20230601T170000
DTSTAMP:20260414T183746
CREATED:20230601T044621Z
LAST-MODIFIED:20230601T044621Z
UID:2315-1685635200-1685638800@rpm.physics.lbl.gov
SUMMARY:NO RPM TALK TODAY
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/no-rpm-talk-today/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230525T160000
DTEND;TZID=UTC:20230525T170000
DTSTAMP:20260414T183746
CREATED:20230405T174425Z
LAST-MODIFIED:20230523T161646Z
UID:2227-1685030400-1685034000@rpm.physics.lbl.gov
SUMMARY:Speaker: Eric Torrence (University of Oregon)- Title: Precision Luminosity with the ATLAS Experiment
DESCRIPTION:This is an In-Person [HYBRID] Event \nDate: MAY 25\, 2023 \nLocation: Sessler Conference Room – 50A-5-5132 \nSPEAKER: Eric Torrence (University of Oregon) \nTITLE: Precision Luminosity with the ATLAS Experiment\n \nABSTRACT: Abstract:  A precise measurement of the integrated luminosity is a key component of the ATLAS physics program at the CERN LHC. This measurement is based on an absolute calibration of the LUCID detector using dedicated van der Meer beam-separation scans\, and extrapolated to physics conditions with a set of complimentary measurements from the ATLAS inner detector and calorimeter systems. Evaluated for all physics data recorded during the LHC Run2 data taking (from 2015-18)\, the uncertainty on the integrated luminosity delivered to ATLAS has achieved a relative precision of 0.8%. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-eric-torrence-university-of-oregon-title-tba/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230522T140000
DTEND;TZID=UTC:20230522T150000
DTSTAMP:20260414T183746
CREATED:20230518T211700Z
LAST-MODIFIED:20230530T165914Z
UID:2298-1684764000-1684767600@rpm.physics.lbl.gov
SUMMARY:[SPECIAL RPM] Speaker: Marcel Vos (IFIC (UV/CSIC) Valencia)
DESCRIPTION:This is an In-Person [HYBRID] Event \nDate: MAY 22\, 2023 \nLocation: Sessler Conference Room – 50A-5-5132 \nSpeaker: Marcel Vos (IFIC (UV/CSIC) Valencia) \nTitle: “The third-generation quarks and the Higgs boson – from the LHC to the next large-scale facility in HEP” \nAbstract: In this seminar I discuss a number of selected topics in studies of the bottom and top quarks. A few recent highlights of the top quark physics program of the ATLAS and CMS experiments at the LHC are presented. These results continue to improve the precision that can be achieved at a hadron collider and expand the energy frontier beyond several TeV. An extensive search program open ups increasingly rare top quark production processes\, providing access to couplings that had not been tested directly so far. To provide a broader perspective\, current results are compared to the prospects of the High Luminosity phase of the LHC and of a future electron-positron collider. The seminar finalizes with a discussion of a proposal to use the interactions of the bottom (and top) quarks with the Higgs boson to test the evolution of particle masses with energy predicted by the Standard Model. \n\nJoin Zoom Meeting \nhttps://lbnl.zoom.us/j/96855892866?pwd=dEltOWdIdHZSSHlBRGJiUXlQdm1Pdz09 \nMeeting ID: 968 5589 2866\nPasscode: 915719
URL:https://rpm.physics.lbl.gov/event/special-rpm-speaker-marcelo-vos-ific-uv-csic-valencia/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230518T160000
DTEND;TZID=UTC:20230518T170000
DTSTAMP:20260414T183746
CREATED:20230426T185240Z
LAST-MODIFIED:20230515T154757Z
UID:2268-1684425600-1684429200@rpm.physics.lbl.gov
SUMMARY:Speaker: Frank Qu (Cambridge University) - Title: Cosmology from high-precision CMB lensing measurements with the Atacama Cosmology Telescope
DESCRIPTION:This is an In-Person [HYBRID] Event \nDate: MAY 18\, 2023 \nLocation: Sessler Conference Room – 50A-5-5132 \nSPEAKER: Frank Qu (Cambridge University) \nTITLE: Cosmology from high-precision CMB lensing measurements with the Atacama Cosmology Telescope \nABSTRACT: \nThe cosmic microwave background provides a unique backlight for illuminating the growth of structures in our universe. Measuring the arcminute-scale lensing deflections experienced by the CMB photons as they travel to our telescopes enables the mapping of the matter distribution to very high redshifts. This lensing signal provides a clean window for constraining fundamental physics\, such as the sum of neutrino masses\, and enables powerful tests of the standard cosmological model via comparison of high-precision measurements of structure growth at late times with early-time predictions. \n  \nIn this talk\, I will present new CMB lensing measurements derived from data release 6 of the Atacama Cosmology Telescope. Our work provides a state-of-the-art lensing power spectrum measurement and an associated signal-dominated lensing mass map that enable a host of cosmological and astrophysical science goals. I will first discuss the novel methods used to tackle key systematics affecting precision CMB lensing. I will then explore the implications of our measurements for tests of cosmic structure growth and the S8 tension. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98854322464?pwd=K2tKUm1VZjRlV1J5RHE3cXdHQzRxdz09 \nMeeting ID: 988 5432 2464\nPasscode: 142239
URL:https://rpm.physics.lbl.gov/event/speaker-frank-qu-cambridge-university-title-tba/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230511T160000
DTEND;TZID=UTC:20230511T170000
DTSTAMP:20260414T183746
CREATED:20230426T190525Z
LAST-MODIFIED:20230510T194348Z
UID:2266-1683820800-1683824400@rpm.physics.lbl.gov
SUMMARY:NO RPM TODAY@ Thursday\, May 11\, 2023
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/speaker-kerstin-tackman-title-tba/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20230504T160000
DTEND;TZID=UTC:20230504T170000
DTSTAMP:20260414T183746
CREATED:20230504T172811Z
LAST-MODIFIED:20230504T173529Z
UID:2287-1683216000-1683219600@rpm.physics.lbl.gov
SUMMARY:NO RPM TODAY @Thursday May 4\, 2023
DESCRIPTION:
URL:https://rpm.physics.lbl.gov/event/no-rpm-today-thursday-may-4-2023/
END:VEVENT
END:VCALENDAR