arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2404.07071hep-ph
收藏

重标度模型中的遮蔽与反遮蔽

Shadowing and antishadowing in the rescaling model

A. V. Kotikov, A. V. Lipatov, P. M. Zhang

AI总结:

该研究在重标度模型中利用QCD领头阶解析表达式并拟合核结构函数比值数据,预测核部分子分布及遮蔽、反遮蔽效应。

摘要:

在重标度模型框架内研究了核深度非弹性结构函数F_2^A(x,Q^2)以及原子核中的部分子分布函数。分析基于在QCD耦合领头阶导出的质子夸克和胶子密度解析表达式。通过利用若干核靶的F_2^A(x,Q^2)/F_2^D(x,Q^2)比值实验数据拟合重标度参数,得出了相应核部分子分布的预测,并由此得到遮蔽和反遮蔽效应的预测。

英文摘要:

Nuclear deep inelastic structure functions F_2^A(x,Q^2) as well as parton distribution functions in a nuclei are investigated in the framework of rescaling model. Our analysis is based on analytical expressions for quark and gluon densities in a proton derived at the leading order of QCD coupling. By fitting the rescaling parameters from the experimental data on F_2^A(x,Q^2)/F_2^D(x,Q^2) ratio for several nuclear targets, we derive predictions for corresponding nuclear parton distributions and, thus, for shadowing and antishadowing effects.

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。

↑