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arXiv 2201.03878hep-ph
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受$SO(10)$启发的通用$U(1)_X$模型

The Generic $U(1)_X$ Models Inspired from $SO(10)$

Tianjun Li, Qianfei Xiang, Xiangwei Yin, Han Zhou

摘要:

通过选择$U(1)_X$规范对称性为$SO(10)$的$U(1)_Y\times U(1)_χ$的线性组合,我们提出了具有三个右手中微子的普适$U(1)_X$族模型.为了与量子引力效应相一致,我们引入了一个狄拉克费米子$χ$作为暗物质候选者,它在$U(1)_X$破缺后的规范$Z_2$对称性下是奇的。利用$f_n/f_p = -0.7$可以自然地实现暗物质的同位旋破坏,从而可以避开LUX、PANDAX和XENON1T实验的限制。此外,我们研究了Higgs玻色子和规范玻色子的质量和混合,考虑了LHC对$Z'$质量的约束,模拟了暗物质直接和间接探测实验的各种约束,然后给出了可行的参数空间。为了研究一般$U(1)_X$模型上的LHC $Z'$质量边界,我们考虑了四种情形,其中情形II中右手向上型夸克的$U(1)_X$荷为零,可以稍微放宽LHC $Z'$质量边界.

英文摘要:

We propose the family universal $U(1)_X$ models with three right-handed neutrinos by choosing the $U(1)_X$ gauge symmetry as a linear combination of $U(1)_Y\times U(1)_χ$ of $SO(10)$. To be consistent with the quantum gravity effects, we introduced a Dirac fermion $χ$ as a dark matter candidate, which is odd under the gauged $Z_2$ symmetry after $U(1)_X$ breaking. The isospin violation dark matter with $f_n/f_p = -0.7$ can be realized naturally, and thus the LUX, PANDAX, and XENON1T experimental constraints can be evaded. Moreover, we study the masses and mixings for Higgs and gauge bosons, consider the LHC constraints on the $Z'$ mass, simulate various constraints from dark matter direct and indirect detection experiments, and then present the viable parameter spaces. To study the LHC $Z'$ mass bounds on the generic $U(1)_X$ models, we considered four kinds of scenarios, where scenario II with zero $U(1)_X$ charge for right-handed up-type quarks can relax the LHC $Z'$ mass bound a little bit.

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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