GD/I WG: Physics Requirements

Monday 19 Sep 2022, 09:00 → 11:00 US/Eastern

Zoom connection: https://bnl.zoomgov.com/j/1612787551?pwd=VzBZYVpsMGM3TnpMRHl2K1puOFd5Zz09

Meeting ID: 161 278 7551
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Recording from ZOOM

https://bnl.zoomgov.com/rec/share/7tMJRxRmdZqWCf6ztWjYfOGJq2MrcWDkuLmhB8tbtjHK1taGA1vqAw3aOUZIIbxo.ZdD_4Sec6XveWbev 
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The Meeting recording is available via zoom: https://bnl.zoomgov.com/rec/share/7tMJRxRmdZqWCf6ztWjYfOGJq2MrcWDkuLmhB8tbtjHK1taGA1vqAw3aOUZIIbxo.ZdD_4Sec6XveWbev 

Passcode: Q^jSWv0k

 

Thanks to the Project Management for the update on the mechanical design for the backward endcap: 

• New location for the EEMC to reduce the EMCal coverage gap with barrel BEMC; easier overlap between backward and barrel EMCal in case the imaging BECAL is adopted;
• Serious concerns over backward AC-LGAD for space available and vicinity to the PWO crystals which requires stringent temperature control 
• In the option of imaging BECAL, moving the BECAL to higher radius has significant  cost implications (R^2 scaling);
• In the option of pfRICH, shorter expansion vol. (e.g. 30cm) and its performance impact should be explored

 

Thanks to three Physics WGs updating on the requirements on low pT tracking and PIDs: 

• The inclusive group provided a comprehensive map of the electron detection requirement, in particular, the relation between kinematics reaches and low momentum cut-off for electrons. 
• The HF/Jet group showed 
  • the quantitative improvement of the Lambda_c statistical significance (about x2) with the TOF rejecting low momentum background for the proton decay channel; 
  • D0 channel does not benefit from TOF; 
  • The TOF information in the backward is not regarded as a major need for these physics measurements (other than e-induced T0 determination)  
• SIDIS group presented the low momentum tracking impact to SIDIS A_LL, dihadron IFF, and Lambda final state. SIDIS in barrel benefits from ToF, SIDIS less strong demand in FWD for anything below 1 GeV 

 

GD/I activity planning:

Moving forward with the global detector design, we aim to define two simulation setups for Oct Campaign in the next two GDI meetings. (see earlier email announcement from GDI)

09:25 → 09:45 Backward end-cap integration

Speakers: E. C. Aschenauer (BNL), Rolf Ent (Jefferson Lab)

GDI_ePIC.09.19.2022.pptx

09:45 → 10:05 Electron detection requirement from inclusive WG

Speaker: Barak Schmookler (UC Riverside)

EPIC_091922.pdf

Report

10:05 → 10:45 Low pT hadron ID (pi/K, K/Proton)

First discussion

VM study