Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis

被引：21

作者：

Cao, N. Y. ^{[1
]}

Barry, P. C. ^{[2
,3
]}

Sato, N. ^{[3
]}

Melnitchouk, W. ^{[3
]}

机构：

[1] Harvard Univ, Cambridge, MA 02138 USA

[2] North Carolina State Univ, Raleigh, NC 27607 USA

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

来源：

PHYSICAL REVIEW D | 2021年 / 103卷 / 11期

关键词：

LEADING NEUTRON-PRODUCTION; QUARK-HADRON DUALITY; CHIRAL CORRECTIONS; DRELL-YAN; DISTRIBUTIONS; NUCLEON; COLLISIONS; PROTONS; FLAVOR; PAIR;

D O I：

10.1103/PhysRevD.103.114014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 p(T)-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.

引用

页数：19

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