论文标题
来自复合希格斯模型的物质和暗物质不对称
Matter and dark matter asymmetry from a composite Higgs model
论文作者
论文摘要
我们在补充了单线重中微子的复合材料型模型的框架中提出了一个低尺度的瘦化情况。中微子之一也可以被视为暗物质候选者，其稳定性通过模型的离散$ \ mathbb {z} _2 $对称性来保证。在强耦合系统的光谱中，可以存在比伪nambu-goldstone Higgs玻色子更重的结合状态。由于这些状态对沉重的右中微子的衰减，可见和黑暗扇区中的不对称性同时产生。将所得的不对称转移到与可见的右中微子相互作用的标准模型钩子上。我们表明，可以在TEV尺度上提供共振剂状态的SphaLeron诱导的Baryon不对称性。根据暗中微子相互作用的耦合强度，模型中允许可行的暗物质质量范围。此外，考虑到暗物质的有效相互作用，我们讨论了低能过程和实验。
We propose a low scale leptogenesis scenario in the framework of composite Higgs models supplemented with singlet heavy neutrinos. One of the neutrinos can also be considered as a dark matter candidate whose stability is guaranteed by a discrete $\mathbb{Z}_2 $ symmetry of the model. In the spectrum of the strongly coupled system, bound states heavier than the pseudo Nambu-Goldstone Higgs boson can exist. Due to the decay of these states to heavy right-handed neutrinos, an asymmetry in the visible and dark sector is simultaneously generated. The resulting asymmetry is transferred to the standard model leptons which interact with visible right-handed neutrinos. We show that the sphaleron-induced baryon asymmetry can be provided at the TeV scale for resonant bound states. Depending on the coupling strength of dark neutrino interaction, a viable range of the dark matter mass is allowed in the model. Furthermore, taking into account the effective interactions of dark matter, we discuss low-energy processes and experiments.
