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Kun Liu weekly discussion with students [ATLAS]

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    • 16:00 → 16:05
      Introduction 5m

      General items.

      Speaker: Prof. Kun LIU (Tsung-Dao Lee Institute & Shanghai Jiao Tong University)
    • 16:05 → 16:15
      ttWML and ttHML analyses status 10m
      Speaker: Nihal BRAHIMI (Tsung-Dao Lee Institute & Shanghai Jiao Tong University)

      ttWML analysis status:

      • Currently targeting the Higgs 2022 conference for a public result (7-11 of November)
      • We had the top approval meeting last Thursday (https://indico.cern.ch/event/1202155/#10-top-wg-approval-differentia) and the analysis was overall well received.
      • We have a list of action items following the meeting that need to be addressed. Targeting the end of this week/begining of next week to finalize them.
      • We aim to have an unblinding approval during next week once the INT note is updated with results from action items. No dedicated meeting required.

      ttHML analysis status:

      • Most of the efforts focussed on defining MVA discriminants to be used in the 0-tau channels.
      • Working closely with Jialin to come up with a good discriminant using DNN. Multiple configurations tested so far. Main bottleneck is the ttW CR and ttH SR definitions. Large anti-correlation (70%) observed between NF(ttH) and NF(ttW) which is not desirable (updates from Jialin today, rehearsal for analysis meeting later today).
      • Currently preparing config to combine candidate SRs and fakes CRs from ttWML analysis as a proof of principle.
      • We will have a ttHML status report during the October ATLAS week (October 11th). 
    • 16:15 → 16:30
      ttH analysis 15m
      Speaker: jialin li
      0928.pdf
    • 16:30 → 16:45
      photon ID efficiency measurement & Zgamma analysis 15m
      Speaker: Kang Liu
    • 16:45 → 17:00
      silicon tracker: HGTD 15m
    • 17:00 → 17:05
      Non-academic items 5m

      Anything else?