Examination of direct-photon and pion production in proton-nucleon collisions

被引:26
作者
Apanasevich, L [1 ]
Begel, M
Bromberg, C
Ferbel, T
Ginther, G
Huston, J
Kuhlmann, SE
Slattery, P
Zielinski, M
Zutshi, V
机构
[1] Michigan State Univ, E Lansing, MI 48824 USA
[2] Argonne Natl Lab, Argonne, IL 60439 USA
[3] Univ Rochester, Rochester, NY 14627 USA
关键词
D O I
10.1103/PhysRevD.63.014009
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a study of inclusive direct-photon and pion production in hadronic interactions, focusing on a comparison of the ratio of gamma/pi (o) yields with expectations from next-to-leading order perturbative QCD. We also examine the impact of a phenomenological model involving k(T) smearing (which approximates effects of additional soft-gluon emission) on absolute predictions for photon and pion production and their ratio.
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页数:7
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