论文标题
产品组统一中的质子衰变
Proton Decay in Product Group Unification
论文作者
论文摘要
产品组统一是简单大统一的有吸引力的替代品。它解决了臭名昭著的双重三曲线分裂问题和尺寸-5质子衰减问题，而无需进行任何微调。此外，物质多重组仍然嵌入到统一的SU（5）表示中。在本文中，我们讨论了基于SU（5）XU（2）_H的最简单产品组统一模型的质子衰变。我们发现该模型的最小设置已经被Dimension-6质子衰减所排除。我们还表明，具有自然生成的SU（5）不完整的多个模型的简单扩展可以纠正此问题。我们发现，当不完整的多重质量与peccei-quinn对称性破裂相关联时，质子寿命将达到即将到来的实验，例如沙丘和Hyper-K。在这种情况下，暗物质可能是Wino LSP和Axion的混合物。
Product group unification is an attractive alternative to simple grand unification. It solves the infamous doublet-triplet splitting problem and the dimension-5 proton decay problems without introducing any fine-tuning. Furthermore, the matter multiplets are still embedded into unified SU(5) representations. In this paper, we discuss proton decay of the simplest product group unification model based on SU(5)XU(2)_H . We find that the minimal setup of the model has already been excluded by dimension-6 proton decay. We also show that a simple extension of the model, with naturally generated SU(5) incomplete multiplets, can rectify this problem. We find that the proton lifetime will be in reach of coming experiments like DUNE and Hyper-K, when the mass of the incomplete multiplet is associated with the Peccei-Quinn symmetry breaking. In this case, the dark matter may be an admixture of the Wino LSP and the axion.
