Quarks vs. gluons in exclusive rho electroproduction

Details Quarks vs. gluons in exclusive rho electroproduction Quarks vs. gluons in exclusive rho electroproduction

2004-12-13

arxiv.org/abs/hep-ph/0412162v2

Phys.Lett. B609 (2005) 286-290

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 3 figures. v2: clarification in section 3

Scientific paper

10.1016/j.physletb.2005.01.080

We compare the contributions from quark and from gluon exchange to the
exclusive process gamma* p -> rho0 p. We present evidence that the gluon
contribution is substantial for values of the Bjorken variable xB around 0.1.

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