论文标题
嗜血杆菌$ u（1）$型号：$ u（1）_ {l_μ-l_τ} $的中微子地板。
Neutrino Floor in Leptophilic $U(1)$ Models: Modification in $U(1)_{L_μ-L_τ}$
论文作者
论文摘要
在这项工作中，我们研究了瘦素U（1）型号的超级标准模型（BSM），即$ u（1）_ {l_μ-l_e} $，$ u（1）_ {l_e-l_τ} $和$ u（$ u（1）$（1）_ {l_μ-l_ thulds $ nulds nulds interrastion-ce $ cen $ cen $ nuld ce nind ce nind cative nins thuld（物质（DM）直接检测实验。在这些模型上施加最新的相关实验约束，我们在$ u（1）_ {l_μ-l_τ} $的情况下获得$ \ Mathcal {o}（50 \％）$增强，在$ m_z'\ of 20〜 $ MEV中。随后，我们观察到，在中微子散射率中，在CE $ν$ ns中看到的增强大致被翻译成2.7（对于基于锗的检测器）和1.8（对于基于Xenon的探测器）（对于基于Xenon的探测器），最终将中微子地板增强了相同的量。在DM质量小于10 GEV的区域中，这种增强更为突出。在改良的情况下，导致这种增强的模型参数空间可以同时解释若恩（$（G-2）_ $）的异常磁矩和观察到的DM Relic密度。中微子地板的增强需要在未来的DM直接检测实验中增加DM核子散射事件的数量，以确立自己为DM信号事件。在没有任何DM信号的情况下，这些实验可直接用于测量中微子速率，从而量化BSM效应。
In this work, we investigate the beyond standard model (BSM) impact of leptophilic U(1) models, namely $ U(1)_{L_μ-L_e}$, $U(1)_{L_e-L_τ}$ and $U(1)_{L_μ-L_τ}$ on coherent elastic neutrino-nucleus scattering (CE$ν$NS) and hence its effect on dark matter (DM) direct detection experiments. Imposing the latest relevant experimental constraints on these models, we obtain $\mathcal{O}(50\%)$ enhancement for case of $U(1)_{L_μ-L_τ}$ in a region $m_Z' \approx 20~$MeV. Subsequently, we observe that the enhancement seen in CE$ν$NS is roughly getting translated to enhancement by a factor of 2.7 (for Germanium based detectors) and 1.8 (for Xenon based detectors) in the neutrino scattering event rate which eventually enhances the neutrino floor by same amount. This enhancement is more prominent in the region with DM masses less than 10 GeV. The model parameter space that leads to this enhancement, can simultaneously explain both anomalous magnetic moment of muon ($(g-2)_μ$) and observed DM relic density, in a modified scenario. Enhancement of neutrino floor requires increased number of DM-nucleon scattering events in the future DM direct detection experiments, to establish themselves to be DM signal events. In absence of any DM signal, those experiments can directly be used to measure the neutrino rate, quantifying the BSM effects.
