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arXiv 1709.01099hep-ph
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用TYPE-II跷跷板模型解释暗物质和中微子质量

Explaining Dark Matter and Neutrino Mass in the light of TYPE-II Seesaw Model

Anirban Biswas, Avirup Shaw

摘要:

为了同时解释暗物质和中微子的质量和混合角,我们采用了由额外的$SU(2)$双峰$Φ$扩展的II型跷跷板模型。此外,我们对$Φ$施加了一个$\mathbb{Z}_2$奇偶校验,当$Φ$的真空期望值为零时,该奇偶校验保持不变。因此,$Φ$中最轻的中性成分变得自然稳定,可以成为一种可行的暗物质候选者。另一方面,轻马约拉纳质量的中微子已经产生了通常的II型跷跷板机制。在此基础上,我们首次推导出了完整的真空稳定性和么正性条件,分别满足这些条件可以获得稳定的真空和保持模型的么正性.此后,我们进行了广泛的现象学研究的暗物质和中微子部门考虑所有可能的理论和目前的实验限制。最后,我们还讨论了在13 TeV大型强子对撞机的暗物质和相关的奇粒子的定性对撞机签名。

英文摘要:

With the motivation of simultaneously explaining dark matter and neutrino masses, mixing angles, we have invoked the Type-II seesaw model extended by an extra $SU(2)$ doublet $Φ$. Moreover, we have imposed a $\mathbb{Z}_2$ parity on $Φ$ which remains unbroken as the vacuum expectation value of $Φ$ is zero. Consequently, the lightest neutral component of $Φ$ becomes naturally stable and can be a viable dark matter candidate. On the other hand, light Majorana masses for neutrinos have been generated following usual Type-II seesaw mechanism. Further in this framework, for the first time, we have derived the full set of vacuum stability and unitarity conditions, which must be satisfied to obtain a stable vacuum as well as to preserve the unitarity of the model respectively. Thereafter, we have performed extensive phenomenological studies of both dark matter and neutrino sectors considering all possible theoretical and current experimental constraints. Finally, we have also discussed a qualitative collider signatures of dark matter and associated odd particles at the 13 TeV Large Hadron Collider.

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。

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