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arXiv 2407.05482hep-phhep-ex
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在左右对称模型中连接赝南布-戈德斯通暗物质与赝狄拉克中微子

Connecting pseudo-Nambu-Goldstone dark matter with pseudo-Dirac neutrinos in a left-right symmetry model

Sumit Biswas, Vishnu P. K., Anil Thapa

AI总结:

本文在左右对称模型中用赝南布-戈德斯通玻色子实现暗物质,并关联赝狄拉克中微子质量谱,同时无需轴子即可解决强 CP 问题。

摘要:

对于赝南布-戈德斯通玻色子(pNGB)暗物质,暗物质(DM)直接探测实验的严格约束可以被自然地规避。我们在一个左右对称模型中提出了一种 pNGB 暗物质的实现方案,其中中微子本质上是赝狄拉克粒子。中微子的狄拉克质量项来源于两圈量子修正,而马约拉纳质量项则由普朗克诱导修正产生。这类模型还在不需要轴子的情况下为强 CP 问题提供了一种宇称解。我们展示了暗物质寿命与活性中微子和惰性中微子之间的质量平方差之间存在有趣关联,同时保持对强 CP 问题的解决。

英文摘要:

Stringent constraints from the dark matter (DM) direct detection experiments can be naturally evaded for a pseudo-Nambu-Goldstone boson (pNGB) DM. We propose a realization of pNGB DM in the context of a left-right symmetric model, wherein the neutrinos are pseudo-Dirac in nature. The Dirac mass term for neutrinos arises from two-loop quantum corrections, whereas the Majorana mass terms are generated from Planck-induced corrections. This class of model also provides a parity solution to the strong CP problem without the need for an axion. We show an interesting correlation between the lifetime of the DM and the mass-squared differences between active and sterile neutrinos while maintaining a solution to the strong CP problem.

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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