Direct photon production in polarized pp collisions
作者:
Edmond L. Berger,
Jianwei Qiu,
期刊:
AIP Conference Proceedings
(AIP Available online 1991)
卷期:
Volume 223,
issue 1
页码: 162-168
ISSN:0094-243X
年代: 1991
DOI:10.1063/1.40468
出版商: AIP
数据来源: AIP
摘要:
We argue that inclusive direct photon production at large transverse momentum in proton‐proton interaction with longitudinally polarized beam and target is an incisive probe of the polarized gluon distribution in a proton. We provide predictions of cross sections for a range of reasonable choices of the polarized gluon distribution. At current fixed target energies, the cross sections are small but measurable. At collider energies, such as the SSC energy, isolated direct photon production should be considered in order to minimize the nonperturbative contribution due to fragmentation.
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