Jets/HF/EW/BSM WG Meeting

Tuesday 14 Sept 2021, 10:30 → 12:00 US/Pacific

Join Zoom Meeting:
https://ucr.zoom.us/j/92993210648

Meeting ID: 929 9321 0648

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10:30 → 10:40 Introduction

Speakers: Brian Page (Brookhaven National Laboratory), Ernst Sichtermann (Lawrence Berkeley National Laboratory), Miguel Arratia (University of California, Riverside), Stephen Sekula (SMU)

10:40 → 11:00 Discussion - "Zeroth Order Placeholder Figures" for the DOE Proposal

We've been asked to provide some "zeroth order" placeholder figures from this WG for the DOE proposal draft, with a deadline for these placeholders of Friday, Sep. 24. We should have a small discussion of this today.

Discussion Notes:

• Brian: 2-panel-er showing JER/JES as a function of (a) pseudorapidity and (b) energy -> put scale and resolution on same plots, show vs. the 2 different variables
  • Fast Simulation: show fast sim w/ energy flow on same plot as reference points from full sim/single particle
  • For small x physics, resolution at extreme pseudorapidities is important -> show off ECAL, etc. effects in those cases.
• Brian: things we need to touch on as a group
  • Jet performance, resolution, etc.
  • PID performance and vertexing.
  • What might be the optimal plot? Pointing resolutions, D reconstruction (e.g. resolution or signal-to-noise as a function of PID, no PID, etc.)
• Brian: Collins asymmetry-related catch-all?
  • Demo the importance of PID, jet energy resolution, etc.?
  • Miguel: baseline configuration has DIRC in barrel ... current plot doesn't look great with DIRC in the way. Better PID in barrel was discussed in YR as a limiting issue for this.
  • Brian: can we pick and x vs. Q^2 region that emphasizes the dRICH in the forward direction -> look at barrel, use as place to discuss future PID upgrades in ATHENA.
  • Henry: ECCE also has DIRC in plan.
• Steve and Miguel:
  • Charm jet efficiency and background rejection vs. eta, etc.
  • Motivated by strangeness, or gluon-related Delta g/g, etc. 
• Henry and Olga:
  • Make sure we understand the goals of the DOE proposal before we settle on a final list of plots
  • Olga: emphasize distinctive features of ATHENA (3T magnet, coverage, etc.) -> larger magnet bore may make us more upgradeable from a PID perspective, etc.
  • Emphasize strengths if we want to be selected.