The effect of off-diagonal parton distributions in diffractive vector meson electroproduction

Details The effect of off-diagonal parton distributions in diffractive vector meson electroproduction The effect of off-diagonal parton distributions in diffractive vector meson electroproduction

1997-11-18

arxiv.org/abs/hep-ph/9711371v1

Phys.Rev. D57 (1998) 6692-6700

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, latex, 5 ps figures included

Scientific paper

10.1103/PhysRevD.57.6692

We present a simple physical description of the off-diagonal gluon distribution g (x,x^\prime,Q^2) and splitting function P_{gg}(x,x^\prime) which enter the amplitude for diffractive vector meson production. We study the off-diagonal effects both on the evolution in Q^2 and on the input distribution. We predict the ratio $R$ of the off-diagonal to the diagonal gluon density, x^\prime g(x,x^\prime,Q^2)/xg(x, Q^2), as a function of the kinematic variables.

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