Possible measurements of GPDs at COMPASS
Abstract
This paper presents the reactions which can be performed at COMPASS to study the Generalized Parton Distributions (GPDs). The high energy muon beam at CERN allows to measure Hard Exclusive Meson Production or Deeply Virtual Compton Scattering (DVCS) in the Bjorken regime in a large range of Q2 and xBj (1.5<Q2<7.5 GeV2 and 0.03<xBj<0.25). Exploratory measurements dedicated to rho0 or pi0 production can be investigated with the present setup. DVCS measurement require an upgrade of the COMPASS setup.
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