Probing photon structure in DVCS on a photon target

Details Probing photon structure in DVCS on a photon target Probing photon structure in DVCS on a photon target

2009-01-13

arxiv.org/abs/0901.1792v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 1 figure, to be published in the proceedings of the PANIC 2008 conference, Eilat (Israel), November 2008

Scientific paper

The factorization of the amplitude for the deeply virtual Compton scattering (DVCS) process gamma*(Q) gamma -> gamma gamma at high Q2 is demonstrated in two distinct kinematical domains, allowing to define the photon generalized parton distributions and the diphoton generalized distribution amplitudes. Both these quantities exhibit an anomalous scaling behaviour and obey new inhomogeneous QCD evolution equations.

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