大额外维中 Z 玻色子衰变为光子加 Kaluza-Klein 引力子
高能物理 - 唯象学
2009-01-06 v4
摘要
在大额外维的 ADD 图景中，Z 玻色子经历单圈衰变，产生一个光子和 Kaluza-Klein 引力子/引力标量塔。我们计算了此类衰变宽度，扩展了此前关于四维在壳振幅一般形式的论证。所计算的振幅与其他额外维模型中的过程相关，在这些模型中标准模型场被限制在 4-膜上。
引用
@article{arxiv.0705.1953,
title = {Z boson decay to photon plus Kaluza-Klein graviton in large extra dimensions},
author = {Ben C. Allanach and Jordan P. Skittrall and K. Sridhar},
journal= {arXiv preprint arXiv:0705.1953},
year = {2009}
}
备注
47 pages, uses feynmp for diagrams. v2: typographical corrections for letter-sized paper and to correct feynmf parsing error. v3: minor error in polarisation averaging and reference corrected. v4: reflects changes for published version; arithmetic error corrected and reference updated; section on transversality conditions not present in published version retained