EICUG Theory WG: the polarized Bethe-Heitler

Name: EICUG Theory WG: the polarized Bethe-Heitler
Start: 2022-10-05T12:00:00-04:00
End: 2022-10-05T13:00:00-04:00
Location: No location set

Wednesday 5 Oct 2022, 12:00 → 13:00 US/Eastern

Alessandro Bacchetta (University of Pavia and INFN), Anna Stasto (Penn State University), Felix Ringer (YITP Stony Brook), Wim Cosyn (FIU)

Description

Recording link Passcode: 73Tt$N0Z

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Recording link

Passcode: 73Tt$N0Z

Papers mentioned:

Haas, Makarenko, "Precision calculation of processes used for luminosity measurement at the ZEUS experiment" : One loop calculations for HERA (but unpolarized)

Afanasev, Akushevich, Merenkov, "Model independent radiative corrections in processes of polarized electron nucleon elastic scattering": calculation of photon emission for elastic polarized ep.

Kriesten, Liuti et al. "Extraction of generalized parton distribution observables from deeply virtual electron proton scattering experiments": Contains polarized BH expressed with four-vector contractions, no masses neglected. Potential issue that might need checks was raised by H. Spiesberger about numerical stability at very forward photon angles.

Belitsky, Mueller, Kirchner, "Theory of DVCS on the nucleon": polarized BH expressions but with electron mass neglected (which cannot be neglected for the small angle photons).

There are minutes attached to this event. Show them.

- 12:00 → 12:30
  
  The polarized Bethe-Heitler process 30m
  
  Speaker: Andrei Afanasev (George Washington University)
  
  afanasev_BetheHeitler_EICUG22.pdf
- 12:30 → 13:00
  
  Discussion 30m