New parton distribution functions for the photon

被引：55

作者：

Gordon, LE ^{[1
]}

Storrow, JK ^{[1
]}

机构：

[1] UNIV MANCHESTER, DEPT THEORET PHYS, MANCHESTER M13 9PL, LANCS, ENGLAND

来源：

NUCLEAR PHYSICS B | 1997年 / 489卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(97)00048-5

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 present new improved parton distributions for the photon, We fit all available data on the photon structure function, F-2(gamma)(x, Q(2)), with Q(2) greater than or equal to 3 GeV2, in order to determine the quark distributions, We also pay particular attention to the gluon distribution in the photon, g(gamma)(x, Q(2)), which has been poorly constrained in earlier analyses which only include structure function data. We use large p(T) jet production in gamma gamma collisions from TRISTAN to constrain g(gamma). We also see what information can be gleaned from gamma p collisions at HERA on g(gamma) and on the quark distributions at large x, where there are no structure function data. We review future prospects of elucidating the parton distributions of the photon. (C) 1997 Published by Elsevier Science B.V.

引用

页码：405 / 423

页数：19

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