论文标题
Xenon1t多余的非弹性费米恩黑物质与Muon $（G-2）$和轻中微子质量
Inelastic Fermion Dark Matter Origin of XENON1T Excess with Muon $(g-2)$ and Light Neutrino Mass
论文作者
论文摘要
由Xenon1T合作的最近报道的电子后坐力事件过多的激励，我们在标准模型的测量$L_μ-L_τ$扩展的框架内提出了一个非弹性费用暗物质（DM）场景，该框架还可以容纳微小的中性群体，也可以容纳Anomalal Muon磁矩MONM MONK MONM MONM MONM MONM MONM MONM MONM MONM MONM MONK MONM MONM MONM MONM MONM $（G-2）$（G-2）_ $ $ $。 Dirac Fermion DM由于所选的量规电荷而自然稳定，由于Singlet Scalar引起的Majorana质量项，分为两个伪DIRAC质量质量本质，这也参与了负责对I型SEESAW seesaw seesaw seesaw seesaw seesaw起源的右中性中微子质量。较重的DM组件的非弹性向下散射会导致Xenon1t过量的keV尺度质量分裂，而较轻的DM分量。我们使用Xenon1T数据拟合模型，还通过使用$（G-2）_ $，DM Relic的边界，较重的DM，无弹性DM电子散射率，中微子三叉戟生产率以及其他风味物理学，天体物理学，天体物理学和自给自足的观测值来找到最终的参数空间。与所有这些界限和要求一致的微小参数空间将在不同边界运行的不久的将来实验面临进一步的审查。
Motivated by the recently reported excess in electron recoil events by the XENON1T collaboration, we propose an inelastic fermion dark matter (DM) scenario within the framework of a gauged $L_μ-L_τ$ extension of the standard model which can also accommodate tiny neutrino masses as well as anomalous muon magnetic moment $(g-2)_μ$. A Dirac fermion DM, naturally stabilised due to its chosen gauge charge, is split into two pseudo-Dirac mass eigenstates due to Majorana mass term induced by singlet scalar which also takes part in generating right handed neutrino masses responsible for type I seesaw origin of light neutrino masses. The inelastic down scattering of heavier DM component can give rise to the XENON1T excess for keV scale mass splitting with lighter DM component. We fit our model with XENON1T data and also find the final parameter space by using bounds from $(g-2)_μ$, DM relic, lifetime of heavier DM, inelastic DM-electron scattering rate, neutrino trident production rate as well as other flavour physics, astrophysical and cosmological observations. A tiny parameter space consistent with all these bounds and requirements will face further scrutiny in near future experiments operating at different frontiers.
