论文标题
pati-salam中的轴和lsp的品质与$ z^r_ {4} \ times z_ {n} $ symmetry
Qualities of axion and LSP in Pati-Salam unification with $Z^R_{4}\times Z_{N}$ symmetry
论文作者
论文摘要
在本文中，我们构建了包含最小超对称标准模型和隐形轴的超对称PATI-SALAM（PS）模型。这些模型包括两个离散对称性，$ \ mathbb {z} _4^r \ times \ times \ mathbb {z} _n $，它们维护意外peccei-quinn（pq）对称性的$质量$，从而解决了强大的CP问题的解决方案。我们要求满足离散异常条件的$ \ mathbb {z} _4^r \ times g _ {\ rm ps}^2 $和$ \ mathbb {z} _n \ times g _ {\ times g _ {\ rm ps}^2 $。 PQ场的真空期望值会自发打破所有离散对称性。如果任何PQ字段中的任何一个在$ \ mathbb {z} _4^r $下都有奇数充电，则会违反R-Parity。我们提出了两个明确的模型，我们将其称为最小模型，其中违反了R-差异，并且是一种非最小模型，其中R-Pary违规违规很重要。在后一种模型中，中性诺即使是最轻的超对称粒子（LSP），也会变得不稳定，此外，还有新的低能载体状状态。在这两个示例中，违反R-Parity违规都足够抑制，以使质子稳定。
In this paper we construct supersymmetric Pati-Salam (PS) models containing the minimal supersymmetric standard model and an invisible axion. The models include two discrete symmetries, $\mathbb{Z}_4^R \times \mathbb{Z}_N$, which maintain the $quality$ of the accidental Peccei-Quinn (PQ) symmetry and thus the solution to the strong CP problem. We require that the discrete anomaly conditions are satisfied for both $\mathbb{Z}_4^R \times G_{\rm PS}^2$ and $ \mathbb{Z}_N \times G_{\rm PS}^2$. The vacuum expectation value of the PQ field spontaneously breaks all the discrete symmetries. R-parity is violated if any of the PQ field(s) has an odd charge under $\mathbb{Z}_4^R$. We present two explicit models which we refer to as a minimal model where R-parity violation is extremely suppressed, and a non-minimal model where R-parity violation is significant. In the latter model, the neutralino becomes unstable even if it is the Lightest Supersymmetric Particle (LSP), and, in addition, there are new low-energy vector-like states. In both examples, R-parity violation is sufficiently suppressed such that the proton is stable.
