arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1302.0502hep-phhep-ex
收藏

II型跷跷板中微子模型中$h\rightarrowγγ$和$Zγ$的关联

Correlation of $h\rightarrowγγ$ and $Zγ$ in Type-II seesaw neutrino model

Chian-Shu Chen, Chao-Qiang Geng, Da Huang, Lu-Hsing Tsai

摘要:

在II型跷跷板中微子模型中,研究了荷电标量对$h\rightarrow γγ$和$h\rightarrow Zγ$的Higgs衰变通道的贡献.在模型中的大多数允许的参数空间中,对$h\rightarrow Zγ$的新贡献与对$h\rightarrowγγ$的新贡献正相关。如果当前超过ATLAS协作组测量的$h\rightarrow γγ$发生率的情况持续存在,则$h\rightarrow Zγ$发生率也应大于相应的标准模型预测值。我们证明了$h\rightarrowγγ$和$h\rightarrow Zγ$之间的反相关只存在于某些特定的区域。

英文摘要:

We study the charged scalar contributions to the Higgs decay channels of $h\rightarrow γγ$ and $h\rightarrow Zγ$ in the Type-II seesaw neutrino model. In most of the allowed parameter space in the model, the new contribution to $h\rightarrow Zγ$ is positively correlated with that to $h\rightarrowγγ$. If the current excess of the $h\rightarrow γγ$ rate measured by the ATLAS Collaboration persists, the $h\rightarrow Zγ$ rate should be also larger than the corresponding standard model prediction. We demonstrate that the anti-correlation between $h\rightarrowγγ$ and $h\rightarrow Zγ$ only exists in some special region.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑