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Phys. Rev. Lett. 81, 1801–1804 (1998)

Spatial Variation of Nuclear Structure Functions and Heavy Quark Production

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V. Emel'yanov1, A. Khodinov1, S. R. Klein2, and R. Vogt2,3
1Moscow State Engineering Physics Institute (Technical University), Kashirskoe avenue 31, Moscow, 115409, Russia
2Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
3Physics Department, University of California, Davis, California 95616

Received 14 May 1998; published in the issue dated 31 August 1998

We explore how nuclear modifications to the free nucleon structure functions (also known as shadowing) affect heavy quark production in collisions at different impact parameters. We assume that the nuclear modifications arise from a density dependent effect such as gluon recombination and are thus proportional to the local density. We calculate the dependence of charm and bottom quark production on impact parameter and show that density dependent modifications can lead to significant reductions in the heavy quark production cross sections in central relative to peripheral interactions.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.1801
DOI:
10.1103/PhysRevLett.81.1801
PACS:
25.75.Dw, 21.65.+f, 24.85.+p