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PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
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X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
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TZID:UTC
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DTSTART:20250101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20251202T160000
DTEND;TZID=UTC:20251202T170000
DTSTAMP:20260414T150359
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:20260414T150359
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/
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BEGIN:VEVENT
DTSTART;TZID=UTC:20251209T160000
DTEND;TZID=UTC:20251209T170000
DTSTAMP:20260414T150359
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:20260414T150359
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/
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BEGIN:VEVENT
DTSTART;TZID=UTC:20251216T160000
DTEND;TZID=UTC:20251216T170000
DTSTAMP:20260414T150359
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/
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