DIS的背对背喷射生产精度接近于等距精度和扭转-3胶子tmd

IF 5 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-01-10 DOI:10.1103/physrevd.111.014010

Tolga Altinoluk, Guillaume Beuf, Alina Czajka, Cyrille Marquet

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引用次数: 0

摘要

我们考虑了在一个纯胶子非极化目标上，在小x下的深度非弹性散射中的dijet产生。从早期在高能极限下获得的接近eikonal精度的结果开始，我们以接近领先的功率精度在背靠背dijet极限下进行了扩展。我们以扭转-2和扭转-3 TMD胶子分布（胶子TMD）的形式，用横向动量依赖（TMD）分解的语言重写我们的结果。在次纬向修正中，我们特别发现了与扭转-2胶子tmd的x依赖相对应的扭转-2贡献。我们还发现了两种类型的扭转-3非极化胶子tmd，以及三种胶子场强张量的相关子。2025年由美国物理学会出版

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Back-to-back dijet production in DIS at next-to-eikonal accuracy and twist-3 gluon TMDs

We consider dijet production in deep inelastic scattering at small x, on a purely gluonic unpolarized target. Starting from earlier results obtained at next-to-eikonal accuracy in the high-energy limit, we perform the expansion in the back-to-back dijet limit, at next-to-leading power accuracy. We rewrite our results in the language of transverse-momentum-dependent (TMD) factorization, in terms of twist-2 and twist-3 TMD gluon distributions (gluon TMDs). Among the next-to-eikonal corrections, we find in particular twist-2 contributions corresponding to the x dependent phase of the twist-2 gluon TMDs. We also find two types of twist-3 unpolarized gluon TMDs, as well as correlators of three gluon field strength tensors.

Published by the American Physical Society

2025

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.