Parton distributions: a new global analysis

被引：684

作者：

Martin, AD

Roberts, RG

Stirling, WJ

Thorne, RS

机构：

[1] Univ Durham, Dept Phys, Durham DH1 3LE, England

[2] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[3] Univ Durham, Dept Math Sci, Durham DH1 3LE, England

[4] Univ Oxford Jesus Coll, Oxford OX1 3DW, England

来源：

EUROPEAN PHYSICAL JOURNAL C | 1998年 / 4卷 / 03期

关键词：

D O I：

10.1007/s100529800904

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 a new analysis of parton distributions of the proton. This incorporates a wide range of new data, an improved treatment of heavy flavours and a re-examination of prompt photon production. The new set (MRST) shows systematic differences from previous sets of partons which can be identified with particular features of the new data and with improvements in the analysis. We also investigate the sensitivities of the results to (i) the uncertainty in the determination of the gluon at large x, (ii) the value of alpha(s)(M-Z(2)) and (iii) the minimum Q(2) cut on the data that are included in the global fit.

引用

页码：463 / 496

页数：34

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