NEXT-TO-LEADING ORDER BREMSSTRAHLUNG CONTRIBUTION TO PROMPT-PHOTON PRODUCTION

被引：72

作者：

AURENCHE, P

CHIAPPETTA, P

FONTANNAZ, M

GUILLET, JP

PILON, E

机构：

[1] CNRS MARSEILLE LUMINY,CTR PHYS THEOR,F-13288 MARSEILLE 9,FRANCE

[2] UNIV PARIS 11,CNRS,PHYS THEOR & HAUTES ENERGIES LAB,F-91405 ORSAY,FRANCE

来源：

NUCLEAR PHYSICS B | 1993年 / 399卷 / 01期

关键词：

D O I：

10.1016/0550-3213(93)90615-V

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We calculate, to the next to leading order, the bremsstrahlung contribution to the inclusive prompt-photon cross section in hadron-hadron collisions. We discuss the possible inputs for the parton-into-photon fragmentation functions, as well as the fragmentation scale dependence of the full inclusive next to leading order prediction. The effect of these corrections is shown to be quite significant in the small-x(t) range, x(t) approximately O(10(-2) at collider energies, and the importance of the gluon into photon fragmentation process is stressed.

引用

页码：34 / 62

页数：29

共 28 条

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