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Axion dark matter, proton decay and unification
Journal of High Energy Physics ( IF 5.4 ) Pub Date : 2020-01-01 , DOI: 10.1007/jhep01(2020)091
Pavel Fileviez Pérez , Clara Murgui , Alexis D. Plascencia

We discuss the possibility to predict the QCD axion mass in the context of grand unified theories. We investigate the implementation of the DFSZ mechanism in the context of renormalizable SU(5) theories. In the simplest theory, the axion mass can be predicted with good precision in the range m a = (2–16) neV, and there is a strong correlation between the predictions for the axion mass and proton decay rates. In this context, we predict an upper bound for the proton decay channels with antineutrinos, τ p → K + ν ¯ ≲ 4 × 10 37 $$ \tau \left(p\to {K}^{+}\overline{\nu}\right)\lesssim 4\times {10}^{37} $$ yr and τ p → π + ν ¯ ≲ 2 × 10 36 $$ \tau \left(p\to {\pi}^{+}\overline{\nu}\right)\lesssim 2\times {10}^{36} $$ yr. This theory can be considered as the minimal realistic grand unified theory with the DFSZ mechanism and it can be fully tested by proton decay and axion experiments.

中文翻译:

轴子暗物质、质子衰变和统一

我们讨论了在大统一理论的背景下预测 QCD 轴子质量的可能性。我们在可重整化 SU(5) 理论的背景下研究了 DFSZ 机制的实现。在最简单的理论中,可以在 ma = (2-16) neV 范围内以良好的精度预测轴子质量,并且轴子质量和质子衰变率的预测之间存在很强的相关性。在这种情况下,我们预测具有反中微子的质子衰变通道的上限,τ p → K + ν¯ ≲ 4 × 10 37 $$ \tau \left(p\to {K}^{+}\overline{\ nu}\right)\lesssim 4\times {10}^{37} $$ yr 和 τ p → π + ν ¯ ≲ 2 × 10 36 $$ \tau \left(p\to {\pi}^{+ }\overline{\nu}\right)\lesssim 2\times {10}^{36} $$ yr.
更新日期:2020-01-01
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