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arXiv 1709.04535hep-ph
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$3-3-1$模型中的轴子暗物质

Axion dark matter in a $3-3-1$ model

J. C. Montero, Ana R. Romero Castellanos, B. L. Sánchez-Vega

摘要:

稍微扩展的右手中微子版本的$3-3-1$模型,我们表明,它不仅可以解决强CP问题,但也给总的暗物质丰度普朗克合作报告。具体来说,我们考虑的可能性,引入一个$3-3-1$标量单线实现重力稳定的Peccei-Quinn机制在这个模型中。值得注意的是,对于允许的区域的参数空间,产生的轴子与质量$m_a\approx$毫电子伏都可以弥补总暗物质遗迹密度通过非热生产机制,并非常接近该地区的IXO日光镜探索。

英文摘要:

Slightly extending a right-handed neutrino version of the $3-3-1$ model, we show that it is not only possible to solve the strong CP problem but also to give the total dark matter abundance reported by the Planck collaboration. Specifically, we consider the possibility of introducing a $3-3-1$ scalar singlet to implement a gravity stable Peccei-Quinn mechanism in this model. Remarkably, for allowed regions of the parameter space, the arising axions with masses $m_a\approx$ meV can both make up the total dark matter relic density through non-thermal production mechanisms and be very close to the region to be explored by the IAXO helioscope.

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