Two-loop Light Quark Corrections To The Top Width
高能物理 - 唯象学
2011-03-02 v1
摘要
A method of computing two-loop fermionic contributions to the width of a heavy quark is described. An analytical formula for this effect in the limit of mass of the quark much larger than the decay products is obtained for the first time. The result confirms previous numerical studies.
引用
@article{arxiv.hep-ph/9503444,
title = {Two-loop Light Quark Corrections To The Top Width},
author = {Andrzej Czarnecki},
journal= {arXiv preprint arXiv:hep-ph/9503444},
year = {2011}
}
备注
Dedicated to Professor K. Zalewski to honor his 60th Birthday, submitted to Acta Phys. Polonica, 5 pages, latex, postscript file including figures is available via anonymous ftp at (129.13.102.139) as ftp://ttpux2.physik.uni-karlsruhe.de/ttp95-15/ttp95-15.ps or via www at http://ttpux2.physik.uni-karlsruhe.de/cgi-bin/preprints/