Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis
Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis
复制标题
迈向π介子的三维部分子结构：将横向动量数据整合到全局QCD分析中
DOI：
10.1103/physrevd.103.114014
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发表时间：
2021
影响因子：
5
通讯作者：
Melnitchouk, W.
中科院分区：
文献类型：
--
作者：
Cao, N. Y.;Barry, P. C.;Sato, N.;Melnitchouk, W.
我们进行了一个新的Monte Carlo QCD分析的π介子部分子分布函数，包括，第一次，横向动量相关的π-核Drell-Yan截面连同集成Drell-Yan和领先的中子电产生数据从HERA。我们评估的灵敏度的Monte Carlo适合运动学削减，因子分解规模，和参数化的选择，我们讨论了各种数据集的影响上的π介子的夸克和胶子分布。这项研究提供了必要的步骤，同时分析共线和横向动量相关的π介子分布和确定的π介子的三维结构。
We perform a new Monte Carlo QCD analysis of pion parton distribution functions, including, for the first time, transverse momentum dependent pion-nucleus Drell-Yan cross sections together with-integrated Drell-Yan and leading neutron electroproduction data from HERA. We assess the sensitivity of the Monte Carlo fits to kinematic cuts, factorization scale, and parametrization choice, and we discuss the impact of the various datasets on the pion’s quark and gluon distributions. This study provides the necessary step towards the simultaneous analysis of collinear and transverse momentum dependent pion distributions and the determination of the pion’s three-dimensional structure.