Diffractive Excitation of Heavy Flavors: Leading Twist Mechanisms

Details Diffractive Excitation of Heavy Flavors: Leading Twist Mechanisms Diffractive Excitation of Heavy Flavors: Leading Twist Mechanisms

2007-02-10

arxiv.org/abs/hep-ph/0702106v2

Phys.Rev.D76:034019,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 19 pages, 12 figures. A short commenting on previously done computations is added

Scientific paper

10.1103/PhysRevD.76.034019

Diffractive production of heavy flavors is calculated within the light-cone dipole approach. Novel leading twist mechanisms are proposed, which involve both short and long transverse distances inside the incoming hadron. Nevertheless, the diffractive cross section turns out to be sensitive to the primordial transverse momenta of projectile gluons, rather than to the hadronic size. Our calculations agree with the available data for diffractive production of charm and beauty, and with the observed weak variation of the diffraction-to-inclusive cross section ratios as function of the hard scale.

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