Difference between revisions of "Pi0 Polarizability Meeting may 22, 2020"

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# Theory update
 
# Theory update
 
# Experiment update
 
# Experiment update
 +
# [https://halldweb.jlab.org/doc-public/DocDB/ShowDocument?docid=4478 Report to collaboration] (Elton)
 
# Updates to collaboration draft
 
# Updates to collaboration draft
 
## Backgrounds to be simulated
 
## Backgrounds to be simulated
−
##* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4450 Background hits] (Elton)
 
 
##* BGGEN (PYTHIA)
 
##* BGGEN (PYTHIA)
−
##* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4433 eta production] (Elton)
+
##* More realistic eta production?
−
##* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4439 Incoherent production] (Elton)
+
 
## Table of cross sections (Rory and Ilya)
 
## Table of cross sections (Rory and Ilya)
−
##* [https://userweb.jlab.org/~ilarin/npp/estimate.pb Single pi0 estimates] (Ilya)
 
−
##* (From Ilya)  I got a rough estimation for the effect of second pi0 absorption on cross-sections: for Primakoff ~7.5% and for Nuclear Coherent ~45%.  That was done for 300MeV pi0pi0 mass. For the incoherent term, this estimation will require more calculations and most likely help of Sergey.
 
−
##*[[Media:Scaling_factors_for_CPP_and_NPP.pdf | Scaling factors for CPP and NPP]] (Rory)
 
−
##* Include references to relevant data
 
−
##* Add values used in the proposal
 
 
## Experiment optimization
 
## Experiment optimization
−
##* Target position (Beni).. not yet
 
−
##* Beam energy:
 
−
##* Generate angular distributions for some other targets to compare to Pb
 
 
## Significance of experiment
 
## Significance of experiment
−
##* The expected uncertainties of the extracted gg->pi0pi0 cross section (Fig. 24 of proposal) need to be verified and studied more carefully
 
 
## Analysis of PRIMEX data  
 
## Analysis of PRIMEX data  
 
# Other business
 
# Other business

Revision as of 07:33, 19 May 2020

Meeting Information

Meeting Time And Location

10:00 am ET (JLab time)

REMOTE

Connecting

You can connect using BlueJeans Video conferencing (ID: 949 429 419). (Click "Expand" to the right for details -->):

  1. Make sure you have created a BlueJeans account via your JLab CUE account using this link:

  2. Meeting ID: 949 429 419
    • (you may need to type this in, depending how you connect)

  3. If connecting via Web Browser: click this link (no passcode is needed):

  4. If connecting via iOS or Android App:
    • Use your JLab e-mail address to log in and then enter the meeting ID given above to join the meeting

  5. If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"

  6. If connecting via Polycom unit:
    • Dial 199.48.152.152 or bjn.vc
    • Enter meeting ID above


Action Items

  1. ChiPT calculation to one loop with Coulomb photon (Svetlana and Aleks)
  2. BGGEN simulations (Mark)

Tentative Agenda

  1. Announcements
  2. Action Items
  3. Feedback from collaboration review
  4. Theory update
  5. Experiment update
  6. Report to collaboration (Elton)
  7. Updates to collaboration draft
    1. Backgrounds to be simulated
      • BGGEN (PYTHIA)
      • More realistic eta production?
    2. Table of cross sections (Rory and Ilya)
    3. Experiment optimization
    4. Significance of experiment
    5. Analysis of PRIMEX data
  8. Other business
  9. Next meeting

Minutes

Attending:

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