Relativity and constituent quark structure in model calculations of parton distributions

Details Relativity and constituent quark structure in model calculations of parton distributions Relativity and constituent quark structure in model calculations of parton distributions

2004-09-06

arxiv.org/abs/hep-ph/0409059v2

Phys.Rev. D70 (2004) 094018

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 6 figures; misprints corrected in the Introduction; final version to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.70.094018

According to recent studies, Parton Distribution Functions (PDFs) and Generalized Parton Distributions (GPDs) can be evaluated in a Constituent Quark Model (CQM) scenario, considering the constituent quarks as composite objects. In here, a fully covariant model for a system of two particles, together with its non relativistic limit, are used to calculate PDFs and GPDs. The analysis permits to realize that by no means the effects of Relativity can be simulated taking into account the structure of the constituent particles, the two effects being independent and necessary for a proper description of available high energy data in terms of CQM.

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