About possible contribution of intrinsic charm component to inclusive spectra of charmed mesons

Details About possible contribution of intrinsic charm component to inclusive spectra of charmed mesons About possible contribution of intrinsic charm component to inclusive spectra of charmed mesons

2009-05-14

arxiv.org/abs/0905.2309v2

J.Phys.G 37:055004,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 4 figures. Version published in J. Phys. G.

Scientific paper

10.1088/0954-3899/37/5/055004

We calculate differential energy spectra ($x_F$-distributions) of charmed particles produced in proton-nucleus collisions, assuming the existence of intrinsic heavy quark components in the proton wave function. For the calculation, the recently proposed factorization scheme is used, based on the Color Glass Condensate theory and specially suited for predictions of a production of particles with large rapidities. It is argued that the intrinsic charm component can, if it exists, dominate in a sum of two components, intrinsic + extrinsic, of the inclusive spectrum of charmed particles produced in proton-nucleus collisions at high energies, in the region of medium $x_F$, $0.15 < x_F < 0.7$, and can give noticeable contribution to atmospheric fluxes of prompt muons and neutrinos.

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