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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
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TZID:America/Los_Angeles
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TZOFFSETFROM:-0800
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DTSTART:20180311T100000
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DTSTART:20181104T090000
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BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180201T160000
DTEND;TZID=America/Los_Angeles:20180201T170000
DTSTAMP:20260415T223423
CREATED:20180129T101934Z
LAST-MODIFIED:20180129T101934Z
UID:735-1517500800-1517504400@rpm.physics.lbl.gov
SUMMARY:Jason Bono (FNAL) Physics and Mathematics in Music
DESCRIPTION:ABSTRACT:\nMusic is nearly universal in human culture and yet it remains\nmysterious. In order to help answer some of music’s fundamental\nquestions\, we will briefly turn to archeology and early history before\nexamining some of music’s salient features from a physical and\nmathematical perspective. Principles rooted in physics and pure\nmathematics will provide a link to intercultural qualities of musical\ntone and melody to the deep role that symmetry plays in human\nperception\, thus shedding light on the questions that we set out to\nanswer. To enhance clarity and familiarity\, various concepts will be\nillustrated with animations and sound bites.
URL:https://rpm.physics.lbl.gov/event/jason-bono-fnal-physics-and-mathematics-in-music/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180206T160000
DTEND;TZID=America/Los_Angeles:20180206T170000
DTSTAMP:20260415T223423
CREATED:20180105T093524Z
LAST-MODIFIED:20180105T093524Z
UID:707-1517932800-1517936400@rpm.physics.lbl.gov
SUMMARY:Heather Gray (LBNL) Title: The Higgs and the Quarks; Probing the Yukawa couplings of the Higgs boson
DESCRIPTION:Abstract:  \nThe discovery of the Higgs boson at the LHC in 2012 relied predominantly on studies of the bosonic decay modes. However\, there is a rich structure in the Yukawa sector of the Higgs boson.  Studies of the direct coupling of the Higgs boson to fermions can be used to probe the proportionality of this coupling to the fermion mass and hence the test the fermionic mass generation mechanism. I will introduce current experimental studies in the quark sector and\, in particular\, the recent evidence obtained at the LHC for the coupling of the Higgs to heavy quarks. I will discuss some of the important experimental challenges and highlight new ideas for the future.
URL:https://rpm.physics.lbl.gov/event/heather-gray-2/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180208T160000
DTEND;TZID=America/Los_Angeles:20180208T170000
DTSTAMP:20260415T223423
CREATED:20180104T090008Z
LAST-MODIFIED:20180104T090008Z
UID:699-1518105600-1518109200@rpm.physics.lbl.gov
SUMMARY:Daniel Scolnic (U. Chicago) "Measuring Dark Energy with Supernovae and Kilonovae"
DESCRIPTION:ABSTRACT:\nThe next decade will be the golden age of cosmology with transients. In this talk\, I will present new analyses of Type Ia Supernovae that mark the most precise measurement of dark energy to date. I will go over how this analysis ties together with the analysis of the local value of the Hubble constant\, for which tension persists with the inferred value from the CMB – an exciting hint at possible departures from the standard cosmological model. I will then discuss the first measurements of the Hubble constant with kilonovae and gravitational waves. I will review the large amount of overlap between the issues that must be tackled for future progress using supernovae and kilonovae to measure cosmological parameters. Finally\, I will discuss the roles that surveys like LSST and WFIRST will play and how we can harness the millions of transients discovered to make generation-defining cosmological measurements.
URL:https://rpm.physics.lbl.gov/event/daniel-scolnic-u-chicago-tba/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180213T160000
DTEND;TZID=America/Los_Angeles:20180213T170000
DTSTAMP:20260415T223423
CREATED:20180105T093552Z
LAST-MODIFIED:20180105T093552Z
UID:709-1518537600-1518541200@rpm.physics.lbl.gov
SUMMARY:Zeynep Demiragli (CMS / MIT) "Search for Dark Matter: CMS Strikes Back!"
DESCRIPTION:Abstract:\nThe experiments at the Large Hadron Collider (LHC) at CERN are at the energy frontier of particle physics\, searching for answers to fundamental questions of nature. In particular\, dark matter (DM) presents strong evidence for physics beyond the standard model (SM). However\, there is no experimental evidence of its non-gravitational interaction with SM particles. If DM has non-gravitational interactions with the SM particles\, we could be producing the DM particles in the proton-proton collisions at the LHC. While the DM particles would not produce an observable signal in the detector\, they may recoil with large transverse momentum against visible particles resulting in an overall transverse momentum imbalance in the collision event. In this talk\, I will review the searches for DM particles in these missing momentum final states at the Compact Muon Solenoid (CMS) experiment. I will also discuss the prospects for discovering dark matter at the High Luminosity-LHC and other future experiments.
URL:https://rpm.physics.lbl.gov/event/zeynep-demiragl/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180215T160000
DTEND;TZID=America/Los_Angeles:20180215T170000
DTSTAMP:20260415T223423
CREATED:20180105T093618Z
LAST-MODIFIED:20180105T093618Z
UID:711-1518710400-1518714000@rpm.physics.lbl.gov
SUMMARY:Haichen Wang (LBNL) Title: The Higgs boson and the top quark share the stage
DESCRIPTION:Abstract:\nThe top quark plays an important role in the collider phenomenology of the Higgs boson\, and the study of the interplay between the top quark and the Higgs boson may provide key insights to some critical questions in particle physics. A milestone in the experimental study of the top-Higgs sector of the Standard Model will be the observation of the Higgs boson production in association with top quarks (ttH)\, a direct evidence for the top-Higgs Yukawa coupling. With 36.1 fb-1 pp collisions at 13 TeV\, the ATLAS experiment performed searches for the ttH production in several channels and found the evidence for this production. In this talk\, I start with a brief overview on the experimental understanding of the Higgs boson properties and motivate the study of the top-Higgs Yukawa coupling. I then present the ATLAS ttH searches with a focus on the diphoton channel. In the end\, I discuss the prospect of the ttH study and its impact on other aspects of the LHC physics program.
URL:https://rpm.physics.lbl.gov/event/haichen-wang/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180220T160000
DTEND;TZID=America/Los_Angeles:20180220T170000
DTSTAMP:20260415T223423
CREATED:20180105T093643Z
LAST-MODIFIED:20180105T093643Z
UID:713-1519142400-1519146000@rpm.physics.lbl.gov
SUMMARY:Lauren Tompkins (Stanford U.) "The World’s most complicated game of Bingo: Pattern Recognition at the Energy-Intensity Frontier"
DESCRIPTION:Abstract:\nIn 2012 the ATLAS and CMS experiments discovered the Higgs Boson\, firmly establishing the Standard Model as the dominant paradigm for subatomic particle interactions.  Many expected the Higgs discovery to be one of several discoveries at the energy frontier\, yet five years later it remains the single addition to the subatomic particle pantheon.  Meanwhile\, the LHC has begun to push the boundaries of the hadron collision intensity frontier\, yielding large datasets for further understanding the Standard Model as well as continuing the increasingly difficult search for new physics.  I will discuss a path through the intensity frontier\, focusing on a hardware based\, real-time pattern recognition engine which will enable the ATLAS experiment to fully exploit the delivered data by playing the world’s most complicated game of bingo.
URL:https://rpm.physics.lbl.gov/event/lauren-tompkins/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180227T160000
DTEND;TZID=America/Los_Angeles:20180227T170000
DTSTAMP:20260415T223423
CREATED:20180224T202826Z
LAST-MODIFIED:20180224T202826Z
UID:748-1519747200-1519750800@rpm.physics.lbl.gov
SUMMARY:Julien Guy (LBNL) "The DESI Project\, Construction Status and Prospects for Precise Cosmological Distance Measurements with Lyman-Alpha Forests"
DESCRIPTION:Abstract:\nThe Dark Energy Spectroscopic Instrument is a multi-object spectrograph composed of a wide field corrector\, a 5000 robotically positioned fiber system\, and 10 3-arms spectrographs. The instrument is installed this year on the Mayall 4-m diameter telescope at Kitt Peak\, Arizona. Operations will start next year. In 5 years\, DESI will measure spectra and redshifts of more than 30 million galaxies and quasars. This catalog will be used to measure the expansion history of the Universe and the growth rate of structure in the past 10 billion years with sub-percent precision. I will present the construction status and give some insight on the Lyman-alpha BAO analysis.
URL:https://rpm.physics.lbl.gov/event/julien-guy-lbnl-the-desi-project-construction-status-and-prospects-for-precise-cosmological-distance-measurements-with-lyman-alpha-forests/
LOCATION:HYBRID 50A-5132 (Sessler Conference Room)\, https://lbnl.zoom.us/j/91782268585\, 50A-5132
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