Polarized double photon production in QCD to order alpha(s)

被引：7

作者：

Coriano, C ^{[1
]}

Gordon, LE ^{[1
]}

机构：

[1] ARGONNE NATL LAB,HIGH ENERGY PHYS LAB,ARGONNE,IL 60439

来源：

PHYSICAL REVIEW D | 1996年 / 54卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.54.781

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a complete order alpha(s) analysis of the process pp-->gamma gamma+X with polarized initial states, previously studied by us with leading order structure functions. We include in our calculation new sets of parton densities evolved in NLO QCD, such as those of Gehrmann and Stirling and of Gluck et al., which incorporate the new anomalous dimensions of Mertig and Van Neerven in the evolution equation. A detailed phenomenological analysis is also given which includes the photon isolation. Our results indicate that the asymmetries, although not very large, should be substantial enough at BNL RHIC energies to be measurable in future planned experiments.

引用

页码：781 / 788

页数：8

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