arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1801.09314hep-phhep-ex
收藏

非对称暗物质、重子非对称性和轻子数破坏

Asymmetric dark matter, baryon asymmetry and lepton number violation

Mads T. Frandsen, Claudia Hagedorn, Wei-Chih Huang, Emiliano Molinaro, Heinrich Päs

摘要:

我们研究了轻子数破坏(LNV)对重子不对称性的影响,产生于早期宇宙中,在存在一个具有整体对称性$U(1)_X$的暗扇区,具有不对称的暗物质(ADM)。我们表明,在一般的LNV,在大型强子对撞机或在无中微子双β衰变实验中观察到的,不能洗出重子不对称产生在更高的尺度,不像在没有这样的黑暗部门的情况下。因此,在TeV尺度下观察LNV可以支持ADM场景。考虑到几个模型与不同类型的暗物质(DM),我们发现,DM质量是几个GeV或更低的顺序在我们的情况下。

英文摘要:

We study the effect of lepton number violation (LNV) on baryon asymmetry, generated in the early Universe, in the presence of a dark sector with a global symmetry $U(1)_X$, featuring asymmetric dark matter (ADM). We show that in general LNV, observable at the LHC or in neutrinoless double beta decay experiments, cannot wash out a baryon asymmetry generated at higher scales, unlike in scenarios without such dark sector. An observation of LNV at the TeV scale may thus support ADM scenarios. Considering several models with different types of dark matter (DM), we find that the DM mass is of the order of a few GeV or below in our scenario.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑