Randall-Sundrum模型中的希格斯玻色子相互作用
高能物理 - 唯象学
2007-05-23 v1
摘要
讨论了Randall-Sundrum模型的标量区。推导了标准模型希格斯玻色子(h)与引力子及radion(phi)的Kaluza-Klein激发态之间的有效势,并证明只有标准模型样的真空被允许。考虑了可见胞上曲率标量混合项xi RHH的理论和实验后果,推导了将质量本征态(h)和(phi)与成对矢量玻色子和夸克子耦合的简单求和规则。对于ZZh和ZZ phi耦合的求和规则结合LEP/LEP2数据表明,h和phi都不能同时较轻。我们给出在施加LEP对非标准希格斯玻色子与ZZ对偶耦合的上限后仍然允许的(mh,mphi)平面上的显式结果。进一步研究了混合的现象学后果,特别是指出希格斯玻色子衰变h -> phi phi将为非零xi提供实验标志,并且对希格斯玻色子搜索具有非常大的影响,其分支比(h->phi phi)可达30-40%。
引用
@article{arxiv.hep-ph/0206197,
title = {Higgs-Boson Interactions within the Randall-Sundrum Model},
author = {Daniele Dominici and Bohdan Grzadkowski and John F. Gunion and Manuel Toharia},
journal= {arXiv preprint arXiv:hep-ph/0206197},
year = {2007}
}
备注
Talk dedicated to Stefan Pokorski on his 60th birthday presented at the conference ``Planck 02'', Fifth European Meeting From the Planck Scale to the Electroweak Scale, ``Supersymmetry and Brane Worlds'', Kazimierz, Poland, May, 2002. 16 pages