Charm production and parton distributions

被引：118

作者：

Lai, HL

Tung, WK

机构：

[1] Michigan State University, E. Lansing

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1997年 / 74卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1007/s002880050408

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：

Recent accurate data on F-2(x, Q) and on F-2(c)(x, Q) from HERA at small-x require a more precise treatment of charm production in the global analysis of parton distributions. We improve on existing global QCD analyses by implementing the leptoproduction formalism of Aivazis et al. which represents a natural generalization of the conventional zero mass QCD parton framework to include heavy quark mass effects. We also perform analyses based on the fixed-flavor-number scheme, which is widely used in the literature, and demonstrate their uses and limitations. We discuss the implications of the improved treatment of heavy quark mass effect in practical applications of PQCD and compare our results with recent related works.

引用

页码：463 / 468

页数：6

共 35 条

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