par Favart, Laurent 
Référence European Physical Journal C. Particles and Fields, 33, page (s509-s511)
Publication Publié, 2004-07
Référence European Physical Journal C. Particles and Fields, 33, page (s509-s511)
Publication Publié, 2004-07
Article révisé par les pairs
| Résumé : | The diffractive scattering of photons off protons γ(*)p → γY (where Y denotes the proton dissociative system or the elastically scattered proton) is measured in two different kinematic regimes at high energy with the H1 detector at HERA. i) the process is studied for the first time at large transverse photon momentum pt γ > 2 GeV in photoproduction regime (Q2 < 0.01 GeV2) and photon-proton c.m.s. energy 175 < W < 247 GeV. The cross section is measured differentially in t and in xIP. The measurement is compared to a LL BFKL prediction of QCD. ii) in electroproduction, the Deeply Virtual Compton Scattering (DVCS) γ*p → γp cross section has been measured more precisely and in an extended kinematic domain: at photon virtualities 4 |
