D-meson production from recombination in hadronic collisions -: art. no. 074036

被引：33
|
作者：
Rapp, R
Shuryak, EV
机构：
[1] NORDITA, DK-2100 Copenhagen, Denmark
[2] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
来源：
PHYSICAL REVIEW D | 2003年 / 67卷 / 07期
关键词：
D O I：
10.1103/PhysRevD.67.074036
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Nonperturbative effects in D-meson production in pion-nucleon and proton-nucleon collisions are investigated within the recombination model. The coalescence of perturbatively created charm quarks with sea and valence quarks from projectile and target fragments is shown to be competitive in magnitude with standard fragmentation calculations at both central (small x(F)) and forward rapidities. Corresponding flavor asymmetries for inclusive D-meson production are thus mostly generated on the (light-) parton distribution level, and turn out to be in reasonable overall agreement with available fixed-target data. Predictions for upcoming measurements at BNL RHIC are given.
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页数：10
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