反常 Wtb 耦合对弱辐射 B 介子衰变的影响
高能物理 - 唯象学
2011-09-15 v3
摘要
我们研究了反常 Wtb 耦合对 分支比的影响。所考虑的耦合被引入为仅由标准模型场构建的规范不变六维算符的一部分。假设带电电流顶点的单圈贡献与树阶味改变中性流贡献同阶。由此导出了相应威尔逊系数的界限。
引用
@article{arxiv.0802.1413,
title = {Anomalous Wtb coupling effects in the weak radiative B-meson decay},
author = {Bohdan Grzadkowski and Mikolaj Misiak},
journal= {arXiv preprint arXiv:0802.1413},
year = {2011}
}
备注
5 pages, 2 figures. The arXiv version remains extended w.r.t. the journal version. The first function in Eq. (12) has been corrected in v3, implying slight changes in the numerical results. Conclusions remain unaffected