Next-to-leading-order QCD corrections to heavy quark fragmentation into 1S0(1,8) quarkonia

被引：0

作者：

Feng, Feng ^{[1
,2
,3
]}

Jia, Yu ^{[3
,4
]}

Sang, Wen-Long ^{[1
]}

机构：

[1] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400700, Peoples R China

[2] China Univ Min & Technol, Beijing 100083, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China

[4] Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2021年 / 81卷 / 07期

基金：

中国国家自然科学基金;

关键词：

GLUON FRAGMENTATION; MESONS; DECAY; PREDICTIONS; CHARM;

D O I：

10.1140/epjc/s10052-021-09390-4

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：

Within NRQCD factorization framework, in this work we compute, at the lowest order in velocity expansion, the next-to-leading-order (NLO) perturbative corrections to the short-distance coefficients associated with heavy quark fragmentation into the S-1(0)(1,8) components of a heavy quarkonium. Starting from the Collins and Soper's operator definition of the quark fragmentation function, we apply the sector decomposition method to facilitate the numerical manipulation. It is found that theNLO QCD corrections have a significant impact.

引用

页数：7

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