Transverse momentum dependent distribution functions in the threshold limit

被引：1
|
作者：
Kang, Zhong-Bo [1 ,2 ,3 ]
Samanta, Kajal [1 ,4 ]
Shao, Ding Yu [4 ,5 ,6 ,7 ]
Zeng, Yang-Li [4 ]
机构：
[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA
[2] Univ Calif Los Angeles, Mani L Bhaumik Inst Theoret Phys, Los Angeles, CA 90095 USA
[3] SUNY Stony Brook, Ctr Frontiers Nucl Sci, Stony Brook, NY 11794 USA
[4] Fudan Univ, Ctr Field Theory & Particle Phys, Dept Phys, Shanghai 200438, Peoples R China
[5] Fudan Univ, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China
[6] Shanghai Res Ctr Theoret Nucl Phys, Shanghai 200438, Peoples R China
[7] Fudan Univ, Shanghai 200438, Peoples R China
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2023年 / 2023卷 / 11期
基金：
美国国家科学基金会;
关键词：
Factorization; Renormalization Group; Parton Distributions; Resummation; Specific QCD Phenomenology; JOINT RESUMMATION; PAIR PRODUCTION;
D O I：
10.1007/JHEP11(2023)220
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We apply the joint threshold and transverse momentum dependent (TMD) factorization theorem to introduce new threshold-TMD distribution functions, including threshold-TMD parton distribution functions (PDFs) and fragmentation functions (FFs). We apply Soft-Collinear Effective Theory and renormalization group methods to carry out QCD evolution for both threshold-TMD PDFs and FFs. We show the universality of threshold-TMD functions among three standard processes, i.e. the Drell-Yan production in pp collisions, semi-inclusive deep-inelastic scattering and back-to-back two hadron production in e+e- collisions. In the end, we present the numerical predictions for different threshold-TMD functions and also transverse momentum distributions at pp, ep, and e+e- collisions.
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页数：30
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