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FIZIKA B 13 (2004) 2, 397-404
 
GENERALIZED PARTON DISTRIBUTIONS AND THE STRUCTURE OF THE CONSTITUENT
QUARK
SERGIO SCOPETTAa,b and VICENTE VENTOc,d
aDipartimento di Fisica, Universita degli Studi di Perugia,
I-06100 Perugia, Italy
bIstituto Nazionale di Fisica Nucleare, Sezione di Perugia
cDepartament de Fisica Teorica, Universitat de Valencia, 46100 Burjassot
(Valencia), Spain
dIFIC, Consejo Superior de Investigaciones Científicas
Received 4 September 2003; Accepted 26 April 2004
Online 14 November 2004
In a scenario where the constituent quarks are composite systems, generalized parton
distributions (GPDs) are built from wave functions to be evaluated in a constituent quark
model (CQM), convoluted with the GPDs of the constituent quarks themselves. The approach
permits to access the full kinematical range corresponding to the DGLAP and ERBL regions,
so that cross-sections for deeply virtual Compton scattering can be estimated.
PACS numbers: 12.39-x, 13.60.Hb, 13.88+e
UDC 539.12
Keywords: hard exclusive processes, constituent quarks, generalized parton
distributions, deeply virtual Compton scattering
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