从$Z$玻色子物理看顶夸克宽度
高能物理 - 唯象学
2008-02-03 v2
摘要
我们讨论了顶夸克宽度可能的非标准贡献,特别是在MSSM框架内对标准衰变的虚效应。我们还根据近期对玻色子可观测量分析的结果,重新强调了非常规衰变道。结果表明,在玻色子物理所凸显的参数空间区域,带电希格斯玻色子衰变道相对于顶夸克的标准衰变应具有可观的衰变分支比。值得注意的是,该区域中相应的量子效应也相当大,退耦缓慢,并且很可能在Tevatron和LHC的下一代实验中得到分辨。
引用
@article{arxiv.hep-ph/9508339,
title = {The Top-Quark Width in the Light of $Z$-Boson Physics},
author = {Joan Sola},
journal= {arXiv preprint arXiv:hep-ph/9508339},
year = {2008}
}
备注
One new figure added, with supplementary comments. 17 pages, LaTeX, 2 figures included via psbox. A postcript version can be obtained from anonymous ftp at ftp://ftp.ifae.es/preprint/ft/uabft372.ps Talk presented at the Workshop on Physics of the Top Quark, Iowa State University, May 1995