QCD radiative correction to the hadronic annihilation rate of 1(+-) heavy quarkonium

被引：20

作者：

Huang, HW

Chao, KT

机构：

[1] ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA

[2] BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA

来源：

PHYSICAL REVIEW D | 1996年 / 54卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.54.3065

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The hadronic annihilation rate of 1(+-) heavy quarkonium is given to next-to-leading order in alpha(s) and leading order in v(2) using a recently developed factorization formalism which is. based on NRQCD. The result includes both the annihilation of the P-wave color-singlet <Q(Q)over bar> component, and the annihilation of the S-wave color octet <Q(Q)over bar> component of the quarkonium. The notorious infrared divergences due to soft gluons, i.e., the logarithms associated with the binding energy, encountered in previous perturbative calculations of 1(+-) quarkonium decays, are found to be explicitly canceled, and a finite result for the decay width to order alpha(s)(3) is then obtained.

引用

页码：3065 / 3072

页数：8

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