Target mass corrections

被引：104

作者：

Schienbein, Ingo ^{[1
,2
]}

Radescu, Voica A. ^{[3
]}

Zeller, G. P. ^{[4
]}

Christy, M. Eric ^{[5
]}

Keppel, C. E. ^{[5
,6
]}

McFarland, Kevin S. ^{[7
]}

Melnitchouk, W. ^{[6
]}

Olness, Fredrick I. ^{[2
]}

Reno, Mary Hall ^{[8
]}

Steffens, Fernando ^{[9
]}

Yu, Ji-Young ^{[2
]}

机构：

[1] Lab Phys Subatom & Cosmol, F-38026 Grenoble, France

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

[3] Deutsch Elektonen Synchrotron, D-22603 Hamburg, Germany

[4] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

[5] Hampton Univ, Dept Phys, Hampton, VA 23668 USA

[6] Jefferson Lab, Newport News, VA 23606 USA

[7] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

[8] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

[9] Mackenzie Presbiteriana Univ, BR-01302907 Sao Paulo, Brazil

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2008年 / 35卷 / 05期

关键词：

D O I：

10.1088/0954-3899/35/5/053101

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

With recent advances in the precision of inclusive lepton - nuclear scattering experiments, it has become apparent that comparable improvements are needed in the accuracy of the theoretical analysis tools. In particular, when extracting parton distribution functions in the large- x region, it is crucial to correct the data for effects associated with the nonzero mass of the target. We present here a comprehensive review of these target mass corrections ( TMC) to structure functions data, summarizing the relevant formulas for TMCs in electromagnetic and weak processes. We include a full analysis of both hadronic and partonic masses, and trace how these effects appear in the operator product expansion and the factorized parton model formalism, as well as their limitations when applied to data in the x -> 1 limit. We evaluate the numerical effects of TMCs on various structure functions, and compare fits to data with and without these corrections.

引用

页数：32

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