Next-to-leading order corrections to top quark decays to heavy quarkonia

被引：11
|
作者：
Sun, Peng [1 ]
Sun, Li-Ping [1 ]
Qiao, Cong-Feng [1 ,2 ]
机构：
[1] Chinese Acad Sci, Grad Univ, Coll Phys Sci, Beijing 100049, Peoples R China
[2] Chinese Acad Sci, TPCSF, Beijing 100049, Peoples R China
来源：
PHYSICAL REVIEW D | 2010年 / 81卷 / 11期
基金：
中国国家自然科学基金;
关键词：
QCD FRAGMENTATION FUNCTIONS; B-C; HADRONIC PRODUCTION; GLUON FRAGMENTATION; MESONS; UNCERTAINTIES; GENERATOR; BCVEGPY; CHARM;
D O I：
10.1103/PhysRevD.81.114035
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The decay widths of top quark to S-wave b (c) over bar andb (b) over bar bound states are evaluated at the next-to-leading-order accuracy in strong interaction. Numerical calculation shows that the next-to-leading-order corrections to these processes are remarkable. The QCD renormalization scale dependence of the results is obviously depressed, and hence the uncertainties lying in the leading order calculation are reduced.
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页数：7
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