GPDs at COMPASS

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• GPDs at COMPASS
• the work to be realized to get a complete
  proposal
• http//proj-deepvcs.web.cern.ch/proj-dee
  pvcs/
• First meeting on September 8
• Next meeting on December 14
•  

N. dHose 8 November 2006
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Towards a proposal for GPDs at COMPASS
1.Complete experiment with DVCS and meson
production Competition and complementarity with
the other experiements Key experiment BCA
with and . L. Schoeffel
Ask someone from Jlab to present us what they do
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possible solution to complete the COMPASS setup
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Exclusivity hermetic detector ECAL0
to reject p contamination Recoil detector for
proton (and also pions, neutron)

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Towards a proposal for GPDs at COMPASS
2.The beam The target The scattered muon,
trigger and vetos Recoil performances and
experimental tests Ecal performances and
experimental test .. I. Savin A
Monte-Carlo simulation with the COMPASS
apparatus..E. Burtin Luminosity (random
trigger) 3.Expected events and statistical
errors Significance of our results with
respect to different predictions
? impact on the transverse distribution of
partons, Ju, Jd
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Important work for simulations
What has been done so far
How to proceed ? Which strategy?