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arXiv 0709.1775hep-ph
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目标质量修正研究综述

A Review of Target Mass Corrections

Ingo Schienbein, Voica A. Radescu, G. P. Zeller, M. Eric Christy, C. E. Keppel, Kevin S. McFarland, W. Melnitchouk, Fredrick I. Olness, Mary Hall Reno, Fernando… 展开作者

Ingo Schienbein, Voica A. Radescu, G. P. Zeller, M. Eric Christy, C. E. Keppel, Kevin S. McFarland, W. Melnitchouk, Fredrick I. Olness, Mary Hall Reno, Fernando Steffens, Ji-Young Yu

摘要:

随着最近在包含轻子-核散射实验的精度方面的进展,很明显,在理论分析工具的精度方面需要进行相应的改进。特别是,当提取部分子分布函数在大x区域,它是至关重要的,以纠正与非零质量的目标相关的影响的数据。本文对结构函数数据的目标质量修正(TMC)进行了综述,总结了电磁过程和弱过程中TMC的相关公式。我们包括一个完整的分析强子和部分子的质量,并跟踪这些影响如何出现在算子乘积展开和因式分解部分子模型形式主义,以及它们的局限性时,适用于数据的x->1限制。我们评估的数值效应的TMCs上的各种结构功能,并比较适合的数据,没有这些修正。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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