轻夸克分裂成s波完全粲四夸克

IF 5.3 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-03-10 DOI:10.1103/physrevd.111.054006

Xiao-Wei Bai, Yingsheng Huang, Wen-Long Sang

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引用次数: 0

摘要

在非相对论QCD框架下，我们计算了一个轻夸克在αs和v的领先阶上分裂成s波完全粲四夸克（T4c）的碎片函数。我们给出了轻夸克分裂成T4c的结果，并预测了它在大型强子对撞机和电子-离子对撞机的高横动量（pT）下对T4c产生的贡献。我们还比较了轻夸克与粲夸克和胶子的破碎通道。我们的分析表明，轻夸克碎裂的T4c产生截面小于胶子碎裂，但大于粲夸克碎裂。2025年由美国物理学会出版

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Light quark fragmentation into an S-wave fully charmed tetraquark

We compute the fragmentation function of a light quark into S-wave fully charmed tetraquarks (T4c) within the nonrelativistic QCD framework, at leading order in αs and v. We present results for light quark fragmentation into T4c and predict its contribution to T4c production at high transverse momentum (pT) at the large hadron collider and electron-ion collider. We also compare light quark fragmentation with charm quark and gluon fragmentation channels. Our analysis shows that the production cross section for T4c from light quark fragmentation is smaller than that from gluon fragmentation but larger than that from charm quark fragmentation.

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.