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PRODID:-//LBNL Physics Division Research Progress Meetings - ECPv6.8.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
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X-WR-CALNAME:LBNL Physics Division Research Progress Meetings
X-ORIGINAL-URL:https://rpm.physics.lbl.gov
X-WR-CALDESC:Events for LBNL Physics Division Research Progress Meetings
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
TZNAME:UTC
DTSTART:20210101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=UTC:20211109T160000
DTEND;TZID=UTC:20211109T170000
DTSTAMP:20260424T084202
CREATED:20211102T215004Z
LAST-MODIFIED:20211108T164659Z
UID:1729-1636473600-1636477200@rpm.physics.lbl.gov
SUMMARY:Caterina Vernieri (Stanford) "A "Cool" Route to Unveil the Higgs Boson’s Secrets"
DESCRIPTION:ABSTRACT:\nThe Higgs boson was discovered in 2012 by the ATLAS and CMS experiments at the world’s most powerful particle collider\, the Large Hadron Collider (LHC) in Geneva\, Switzerland. This particle plays a unique role in fundamental physics. It gives all of the known elementary particles\, including itself\, their masses. While we now have a strong evidence that the Higgs field is indeed the unique source of mass for the known elementary particles\, the next step is to search for new interactions that could also explain why the Higgs field has the properties required by the Standard Model of particle physics.  We have no clear roadmap to this new theory but the Higgs boson plays a crucial role in this quest. This talk highlights the current experimental results of Higgs boson couplings to other particles and its self-coupling at the LHC and perspectives at future colliders. The goal of a next-generation collider is to carry out precision measurements to per-cent level of the Higgs boson properties that are not accessible at the LHC. The exploitation of the complementarity between LHC and future colliders will be the key to understanding fundamentally the Higgs boson. The Cool Copper Collider (C^3) is a new concept for linear e+e- collider that could provide a rapid route to precision Higgs physics with a compact footprint.\nhttp://physics.lbl.gov/rpm/index.php/events/If you are looking to confirm if there is an event\, due to room reservation\, please go to RPM website for a list of all scheduled talks.\n──────────\nTroy Cortez is inviting you to a scheduled Zoom meeting. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/95906405235 \nMeeting ID: 959 0640 5235\nOne tap mobile\n+16699006833\,\,95906405235# US (San Jose)\n+13462487799\,\,95906405235# US (Houston) \nDial by your location\n+1 669 900 6833 US (San Jose)\n+1 346 248 7799 US (Houston)\n+1 253 215 8782 US (Tacoma)\n+1 301 715 8592 US (Germantown)\n+1 312 626 6799 US (Chicago)\n+1 646 558 8656 US (New York)\nMeeting ID: 959 0640 5235\nFind your local number: https://lbnl.zoom.us/u/a9dnGtb5T \nJoin by SIP\n95906405235@zoomcrc.com \nJoin by H.323\n162.255.37.11 (US West)\n162.255.36.11 (US East)\n115.114.131.7 (India Mumbai)\n115.114.115.7 (India Hyderabad)\n213.19.144.110 (EMEA)\n103.122.166.55 (Australia)\n64.211.144.160 (Brazil)\n69.174.57.160 (Canada)\n207.226.132.110 (Japan)\nMeeting ID: 959 0640 5235 \n──────────
URL:https://rpm.physics.lbl.gov/event/caterina-vernieri-stanford-a-cool-route-to-unveil-the-higgs-bosons-secrets/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211118T120000
DTEND;TZID=UTC:20211118T130000
DTSTAMP:20260424T084202
CREATED:20211113T011605Z
LAST-MODIFIED:20211116T153726Z
UID:1739-1637236800-1637240400@rpm.physics.lbl.gov
SUMMARY:Emily Ann Thompson (DESY) "The Quest For Long-Lived Particles: Searching For Displaced Vertices and Tracking in the Trigger"
DESCRIPTION:Abstract: \nThe existence of long-lived particles (LLPs) is a common feature in many theories beyond the Standard Model. For example\, models with small couplings (i.e. R-parity-violating supersymmetry) and models with compressed mass spectra (i.e. co-annihilating dark matter) predict the presence of LLPs. With lifetimes ranging from picoseconds to nanoseconds\, massive LLPs could decay to several electrically charged particles in the inner tracking volume of the ATLAS detector\, resulting in the reconstruction of a displaced secondary vertex. Integrating tracking information into the trigger at an early stage is critical to enhancing the sensitivity of future searches for LLPs with displaced track signatures. The ATLAS Fast TracKer (FTK) aimed to achieve this by performing global\, hardware-based track finding at a trigger rate of 100 kHz. \nIn this talk\, searches for new long-lived massive particles leaving a displaced vertex signature in the ATLAS inner detector with the full Run-2 dataset are presented. Furthermore\, the FTK system is presented and its application to LLP searches is discussed. \n  \n  \n\n\n\nhttp://physics.lbl.gov/rpm/index.php/events/ \nIf you are looking to confirm if there is an event\, due to room reservation\, please go to RPM website for a list of all scheduled talks.\n──────────\nTroy Cortez is inviting you to a scheduled Zoom meeting. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/92777524053?pwd=Z1JFbVhtZE9jMW1DcnJrd0svU1A4UT09 \nMeeting ID: 927 7752 4053\nPasscode: 509215\nOne tap mobile\n+16699006833\,\,92777524053#\,\,\,\,*509215# US (San Jose)\n+13462487799\,\,92777524053#\,\,\,\,*509215# US (Houston) \nDial by your location\n+1 669 900 6833 US (San Jose)\n+1 346 248 7799 US (Houston)\n+1 253 215 8782 US (Tacoma)\n+1 301 715 8592 US (Washington DC)\n+1 312 626 6799 US (Chicago)\n+1 646 558 8656 US (New York)\nMeeting ID: 927 7752 4053\nPasscode: 509215\nFind your local number: https://lbnl.zoom.us/u/aeM3Tnxfb \nJoin by SIP\n92777524053@zoomcrc.com \nJoin by H.323\n162.255.37.11 (US West)\n162.255.36.11 (US East)\n115.114.131.7 (India Mumbai)\n115.114.115.7 (India Hyderabad)\n213.19.144.110 (Amsterdam Netherlands)\n213.244.140.110 (Germany)\n103.122.166.55 (Australia Sydney)\n103.122.167.55 (Australia Melbourne)\n64.211.144.160 (Brazil)\n69.174.57.160 (Canada Toronto)\n65.39.152.160 (Canada Vancouver)\n207.226.132.110 (Japan Tokyo)\n149.137.24.110 (Japan Osaka)\nMeeting ID: 927 7752 4053\nPasscode: 509215 \n──────────
URL:https://rpm.physics.lbl.gov/event/emily-thompson-desi-albert-ludwigs-universitat-freiburg-the-quest-for-long-lived-particles-searching-for-displaced-vertices-and-tracking-in-the-trigger/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211122T150000
DTEND;TZID=UTC:20211122T160000
DTSTAMP:20260424T084202
CREATED:20211116T221930Z
LAST-MODIFIED:20211116T221947Z
UID:1747-1637593200-1637596800@rpm.physics.lbl.gov
SUMMARY:Dominique Trischuk (University of British Columbia) "Displaced Vertex Search for Heavy Neutral Leptons with the ATLAS Detector"
DESCRIPTION:Abstract:  \nThis seminar will present recent results of a search for long-lived heavy neutral leptons (HNLs) in proton-protoncollisions at the Large Hadron Collider (LHC). The Standard Model (SM) of particle physics is an extremely successful theory and its major predictions have been precisely confirmed. However\, the existence of neutrinos\, with small nonzero masses\, provides evidence that the SM is incomplete. Introducing HNLs into the SM is a natural wayto generate the light neutrino masses through a seesaw mechanism. This search uses 139 fb -1 of ATLAS experimental data collected between 2015 and 2018 at a centre-of-mass energy of 13 TeV. A non-standard techniqueis used to search for a displaced vertex from particle trajectories produced in the HNL decay to leptons. The dominant background from uncorrelated leptons crossing in the ATLAS detector is estimated using an objectshuffling method. The reconstructed HNL mass is used to discriminate between signal and background. No excessof events is observed and constraints on the strength of the interactions between HNLs and neutrinos are imposed in various scenarios. \nThis seminar will conclude with a presentation of methods used to study the detector performance and readout system of the ATLAS Inner Tracker (ITk). The LHC is currently undergoing upgrades that will enable it to produce more than ten times the data that has already been collected. To meet the requirements of this challenging new environment\, an all-silicon particle tracking system will be installed in ATLAS. \n\n\n──────────\nTroy Cortez is inviting you to a scheduled Zoom meeting.Join Zoom Meeting\nhttps://lbnl.zoom.us/j/98663061529?pwd=UjcrMktySE15dHo2aFB0d1R4QjBBQT09 \nMeeting ID: 986 6306 1529\nPasscode: 257822\nOne tap mobile\n+16699006833\,\,98663061529#\,\,\,\,*257822# US (San Jose)\n+13462487799\,\,98663061529#\,\,\,\,*257822# US (Houston) \nDial by your location\n+1 669 900 6833 US (San Jose)\n+1 346 248 7799 US (Houston)\n+1 253 215 8782 US (Tacoma)\n+1 646 558 8656 US (New York)\n+1 301 715 8592 US (Washington DC)\n+1 312 626 6799 US (Chicago)\nMeeting ID: 986 6306 1529\nPasscode: 257822\nFind your local number: https://lbnl.zoom.us/u/ac5QlnwbVX \nJoin by SIP\n98663061529@zoomcrc.com \nJoin by H.323\n162.255.37.11 (US West)\n162.255.36.11 (US East)\n115.114.131.7 (India Mumbai)\n115.114.115.7 (India Hyderabad)\n213.19.144.110 (Amsterdam Netherlands)\n213.244.140.110 (Germany)\n103.122.166.55 (Australia Sydney)\n103.122.167.55 (Australia Melbourne)\n64.211.144.160 (Brazil)\n69.174.57.160 (Canada Toronto)\n65.39.152.160 (Canada Vancouver)\n207.226.132.110 (Japan Tokyo)\n149.137.24.110 (Japan Osaka)\nMeeting ID: 986 6306 1529\nPasscode: 257822 \n──────────
URL:https://rpm.physics.lbl.gov/event/dominique-trischuk-university-of-british-columbia-displaced-vertex-search-for-heavy-neutral-leptons-with-the-atlas-detector/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211123T120000
DTEND;TZID=UTC:20211123T130000
DTSTAMP:20260424T084202
CREATED:20211116T154140Z
LAST-MODIFIED:20211116T160313Z
UID:1744-1637668800-1637672400@rpm.physics.lbl.gov
SUMMARY:Oliver H.E. Philcox (Princeton) " Large Scale Structure Beyond the 2-Point Function"
DESCRIPTION:Abstract: \nQuantum fluctuations in inflation provide the seeds for the large scale distribution of matter today. According to the standard paradigm\, these fluctuations induce density perturbations that are Gaussian distributed. In this limit\, all the information is contained within the pairwise distribution of galaxies\, usually represented by a power spectrum. Today\, the distribution of matter is far from Gaussian\, with structures forming across a vast range of scales. To date\, almost all spectroscopic analyses have used only the two-point function. This begs the question: can we extract more information using higher-point statistics?  \n \nIn this seminar\, I will present a pedagogical overview of the leading-order non-Gaussian statistics\, and demonstrate how they can be used both to sharpen constraints on known physical parameters\, and to provide stringent tests of new physics occurring in the early Universe. One of the major barriers to constraining cosmology from the higher-point functions is computational: measuring the statistics with conventional techniques is infeasible for current and future datasets. I will discuss new methods capable of reducing the computational cost by orders of magnitude\, and show how this facilitates a number of exciting new tests of the cosmological model. Such techniques are already being applied to data from BOSS; the corresponding pipelines can be simply reapplied to DESI data\, and will lead to sharper parameter constraints without additional observing time.\n\n\nhttp://physics.lbl.gov/rpm/index.php/events/If you are looking to confirm if there is an event\, due to room reservation\, please go to RPM website for a list of all scheduled talks.\n──────────\nTroy Cortez is inviting you to a scheduled Zoom meeting. \nJoin Zoom Meeting\nhttps://lbnl.zoom.us/j/98494136036?pwd=QnR3NjBWb0xQN0hZaTNjTjJGWWpaQT09 \nMeeting ID: 984 9413 6036\nPasscode: 566166\nOne tap mobile\n+16699006833\,\,98494136036#\,\,\,\,*566166# US (San Jose)\n+12532158782\,\,98494136036#\,\,\,\,*566166# US (Tacoma) \nDial by your location\n+1 669 900 6833 US (San Jose)\n+1 253 215 8782 US (Tacoma)\n+1 346 248 7799 US (Houston)\n+1 312 626 6799 US (Chicago)\n+1 646 558 8656 US (New York)\n+1 301 715 8592 US (Washington DC)\nMeeting ID: 984 9413 6036\nPasscode: 566166\nFind your local number: https://lbnl.zoom.us/u/aFnp0OM7V \nJoin by SIP\n98494136036@zoomcrc.com \nJoin by H.323\n162.255.37.11 (US West)\n162.255.36.11 (US East)\n115.114.131.7 (India Mumbai)\n115.114.115.7 (India Hyderabad)\n213.19.144.110 (Amsterdam Netherlands)\n213.244.140.110 (Germany)\n103.122.166.55 (Australia Sydney)\n103.122.167.55 (Australia Melbourne)\n64.211.144.160 (Brazil)\n69.174.57.160 (Canada Toronto)\n65.39.152.160 (Canada Vancouver)\n207.226.132.110 (Japan Tokyo)\n149.137.24.110 (Japan Osaka)\nMeeting ID: 984 9413 6036\nPasscode: 566166 \n──────────
URL:https://rpm.physics.lbl.gov/event/oliver-h-e-philcox-princeton-large-scale-structure-beyond-the-2-point-function/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211130T160000
DTEND;TZID=UTC:20211130T170000
DTSTAMP:20260424T084202
CREATED:20211123T162908Z
LAST-MODIFIED:20211123T162919Z
UID:1753-1638288000-1638291600@rpm.physics.lbl.gov
SUMMARY:Robin Hayes (University of British Columbia; Canada) “Probing the Standard Model Through Measurements of the Higgs Boson with the ATLAS Detector”
DESCRIPTION:Abstract: \nAs the most recently-discovered particle of the Standard Model (SM)\, the Higgs boson plays a key role in the quest to deepen our understanding of fundamental physics. Measurements of its production cross-sections probe for disagreement with the SM that might hint at signs of new physics. I will present recent measurements of gluon fusion (ggF) and vector boson fusion (VBF) Higgs production in the H->WW*->evuv decay channel\, using data from the ATLAS detector at CERN’s Large Hadron Collider (LHC). These measurements are challenging due to the high-background environment\, where on average fewer than one in one billion proton-proton collisions produces Higgs bosons. I will discuss novel analysis techniques and improvements that allow the first observation of the H->WW* process in the VBF channel and precise measurements of Higgs boson cross-sections in important kinematic regions. As preparations for the next LHC runs continue\, I will lay out further ways in which the current and future LHC datasets can be exploited to creatively test the SM through Higgs physics. \n\n\n──────────\nTroy Cortez is inviting you to a scheduled Zoom meeting.Join Zoom Meeting\nhttps://lbnl.zoom.us/j/98957756391?pwd=Um02RVJyZXB1dHVtL0VKcjZWcFFHZz09 \nMeeting ID: 989 5775 6391\nPasscode: 845640\nOne tap mobile\n+16699006833\,\,98957756391#\,\,\,\,*845640# US (San Jose)\n+13462487799\,\,98957756391#\,\,\,\,*845640# US (Houston) \nDial by your location\n+1 669 900 6833 US (San Jose)\n+1 346 248 7799 US (Houston)\n+1 253 215 8782 US (Tacoma)\n+1 301 715 8592 US (Washington DC)\n+1 312 626 6799 US (Chicago)\n+1 646 558 8656 US (New York)\nMeeting ID: 989 5775 6391\nPasscode: 845640\nFind your local number: https://lbnl.zoom.us/u/ad7l2jqTIQ \nJoin by SIP\n98957756391@zoomcrc.com \nJoin by H.323\n162.255.37.11 (US West)\n162.255.36.11 (US East)\n115.114.131.7 (India Mumbai)\n115.114.115.7 (India Hyderabad)\n213.19.144.110 (Amsterdam Netherlands)\n213.244.140.110 (Germany)\n103.122.166.55 (Australia Sydney)\n103.122.167.55 (Australia Melbourne)\n64.211.144.160 (Brazil)\n69.174.57.160 (Canada Toronto)\n65.39.152.160 (Canada Vancouver)\n207.226.132.110 (Japan Tokyo)\n149.137.24.110 (Japan Osaka)\nMeeting ID: 989 5775 6391\nPasscode: 845640 \n──────────
URL:https://rpm.physics.lbl.gov/event/robin-hayes-university-of-british-columbia-canada-probing-the-standard-model-through-measurements-of-the-higgs-boson-with-the-atlas-detector/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
END:VEVENT
END:VCALENDAR