Tevatron上顶-粲强味改变中性流
高能物理 - 唯象学
2008-11-26 v2
摘要
我们以模型无关的方式，使用在SU(3)_C × SU(2)_L × U(1)_Y的非线性实现下规范不变的有效拉格朗日量，探讨了顶夸克和粲夸克与胶子场之间异常耦合的可能性。即使在Tevatron当前200 pb^{-1}的积分亮度下，如果在3σ置信限内未发现信号，那么强烈改变t-c-g耦合的新物理能标必须大于约2.5 TeV。对于1 fb^{-1}的数据，该约束可以提高到3.8 TeV。
关键词
引用
@article{arxiv.hep-ph/9511337,
title = {Top-Charm Strong Flavor-Changing Neutral Currents at the Tevatron},
author = {Ehab Malkawi and Tim Tait},
journal= {arXiv preprint arXiv:hep-ph/9511337},
year = {2008}
}
备注
25 pages, 2 postscript figures using epsf.sty This replacement includes the correction of a few errors which have small effects on the results. It is the version to be published in Phys Rev D