Gravitational transverse-momentum distributions

被引：0
作者：
Lorce, Cedric [1 ]
Song, Qin-Tao [1 ,2 ]
机构：
[1] Ecole Polytech, Inst Polytech Paris, CPHT, CNRS, F-91120 Palaiseau, France
[2] Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China
来源：
PHYSICS LETTERS B | 2023年 / 843卷
基金：
中国国家自然科学基金;
关键词：
ANGULAR-MOMENTUM; SINGLE-SPIN; SCATTERING;
D O I：
10.1016/j.physletb.2023.138016
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the energy-momentum tensor of spin-0 and spin -12 hadrons in momentum space. We parametrize this object in terms of so-called gravitational transverse-momentum distributions, and we identify in the quark sector the relations between the latter and the usual transverse-momentum distributions. Focusing on particular components of the energy-momentum tensor, we study momentum densities, flux of inertia and stress distribution in momentum space, revealing part of the wealth of physical information that can be gained from higher-twist transverse-momentum distributions.& COPY; 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.
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