Resurnmation of the jet broadening in DIS

被引：44

作者：

Dasgupta, M

Salam, GP

机构：

[1] DESY, Theory Grp, D-2000 Hamburg, Germany

[2] CERN, Div TH, CH-1211 Geneva 23, Switzerland

[3] Univ Paris 06, LPTHE, Paris, France

[4] Univ Paris 07, Paris, France

来源：

EUROPEAN PHYSICAL JOURNAL C | 2002年 / 24卷 / 02期

关键词：

D O I：

10.1007/s100520200915

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 calculate the leading and next-to-leading logarithmic resummed distribution for the jet broadening in deep inelastic scattering, as well as the power correction for both the distribution and mean value. A truncation of the answer at NLL accuracy, as is standard, leads to unphysical divergences. We discuss their origin and show how the problem can be resolved. We then examine DIS specific procedures for matching to fixed order calculations and compare our results to the data. One of the tools developed for the comparison is an NLO parton distribution evolution code. When compared to PDF sets from MRST and CTEQ it reveals limited discrepancies in both.

引用

页码：213 / 236

页数：24

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