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DTSTART;TZID=UTC:20210930T160000
DTEND;TZID=UTC:20210930T170000
DTSTAMP:20260424T065048
CREATED:20210928T221350Z
LAST-MODIFIED:20211007T231838Z
UID:1702-1633017600-1633021200@rpm.physics.lbl.gov
SUMMARY:Nedaa Alexandra Asbah (Harvard) "Evidence of the Four-Top-Quark Production at the LHC"
DESCRIPTION:ABSTRACT: \nA summary of the latest results on the evidence of the four-top-quark production using proton-proton collision data at a centre of-mass energy of 13 TeV collected by the ATLAS detector at the Large Hadron Collider with an integrated luminosity of 139 fb−1. Events are selected if they contain a same-sign lepton (electron or a muon) pair or at least three leptons (2lSS/3l) or a single lepton or an opposite-sign lepton pair (1l/2lOS). A multivariate technique is used to discriminate between signal and background events in the signal rich regions. \nThe combined four top-quark production cross section is measured to be 24 +7/−6 fb\, with a corresponding observed (expected) signal significance of 4.7 (2.6) standard deviations over the background-only\npredictions. It is consistent within 2.0 standard deviations with the Standard Model expectation of 12.0 ± 2.4 fb. \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/91782268585 \nMeeting ID: 917 8226 8585\nOne tap mobile\n+16699006833\,\,91782268585# US (San Jose)\n+13462487799\,\,91782268585# 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 (Germantown)\n+1 312 626 6799 US (Chicago)\nMeeting ID: 917 8226 8585\nFind your local number: https://lbnl.zoom.us/u/abeLb1T4q1 \nJoin by SIP\n91782268585@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: 917 8226 8585 \n────────── \nTalk Recording Link: \nNedaa Alexandra Asbah (Harvard) Talk
URL:https://rpm.physics.lbl.gov/event/nedaa-alexandra-asbah-harvard-evidence-of-the-four-top-quark-production-at-the-lhc/
LOCATION:Zoom Talk\, 50A-5132\, Berkeley\, ca\, 94720
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