小的$x$夸克和胶子螺旋度对质子自旋谜题的贡献

Q4 Physics and Astronomy

Acta Physica Polonica B, Proceedings Supplement Pub Date : 2023-03-30 DOI:10.5506/aphyspolbsupp.16.7-a8

Y. Tawabutr

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引用次数: 0

摘要

2016-18年推导出了一个小的x螺旋度演变，并在2022年进行了重要修改。本文讨论了它的一般框架，并总结了近年来的理论进展，包括螺旋pdf和$g_1$结构函数在小$x$处的渐近行为。讨论了各种偏振散射数据的最新拟合。该研究项目的结果将为未来电子-离子对撞机(EIC)的偏振小x$测量提供重要的理论输入。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Small-$x$ Quark and Gluon Helicity Contributions to the Proton Spin Puzzle

A small-$x$ helicity evolution has been derived in 2016-18 and received an important modification in 2022. This article discusses its general framework and summarizes the recent theoretical developments, including the asymptotic behaviors of helicity PDFs and $g_1$ structure function at small $x$. The latest fits to various polarized scattering data are also discussed. The results from this research program will provide important theoretical inputs for the future polarized small-$x$ measurements at the electron-ion collider (EIC).

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来源期刊

Acta Physica Polonica B, Proceedings Supplement Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.50

自引率

0.00%

发文量

小的\(x\)夸克和胶子螺旋度对质子自旋谜题的贡献

摘要