CTEQ6 parton distributions with heavy quark mass effects

被引：152

作者：

Kretzer, S ^{[1
]}

Lai, HL

Olness, FI

Tung, WK

机构：

[1] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[2] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[3] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

[4] Taipei Municipal Teachers Coll, Taipei, Taiwan

[5] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA

来源：

PHYSICAL REVIEW D | 2004年 / 69卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.69.114005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Previously published CTEQ6 parton distributions adopt the conventional zero-mass parton scheme since the corresponding hard cross sections are universally available. For precision observables which are sensitive to charm and bottom quark mass effects, we provide in this paper an improved CTEQ6HQ parton distribution set determined in the more general variable flavor number scheme that incorporates heavy flavor mass effects. We describe in detail the QCD scheme and analysis procedure used, examine the predominant features of the new distributions, and compare them with previous distributions.

引用

页数：11

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