MRST partons generated in a fixed-flavour scheme

被引：115

作者：

Martin, A. D.

Stirling, W. J.

Thorne, R. S.

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[2] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England

来源：

PHYSICS LETTERS B | 2006年 / 636卷 / 05期

关键词：

D O I：

10.1016/j.physletb.2006.03.054

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We generate fixed three- and four-light-flavour sets of partons using MRST2004 partons as input. We show that it is important to set n(f) = 3 in the strong coupling, as well as in the splitting and coefficient functions, in order to obtain a consistent set of fixed-flavour partons. We compare the description of data using partons in both variable- and fixed-flavour-number schemes. (c) 2006 Elsevier B.V. All rights reserved.

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页码：259 / 264

页数：6

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