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Gießen 2007 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 11: Elektromagnetische und Hadronische Sonden

HK 11.3: Vortrag

Dienstag, 13. März 2007, 14:45–15:00, A

Nuclear generalized parton distributions — •Marat Siddikov and Vadim Guzey — Ruhr Universitaet Bochum

We perform a microscopic evaluation of nuclear generalized parton distributions (GPDs) for spin-0 nuclei in the framework of the Walecka model. We demonstrate that the meson (non-nucleon) degrees of freedom dramatically influence nuclear GPDs, which is revealed in the non-trivial and unexpected A-dependence of Deeply Virtual Compton Scattering (DVCS) observables. We give predictions for physical observables in HERMES kinematics.

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