论文标题
通过检测连贯的弹性中微子核散射，探测光介质和$（g-2）_ $ $
Probing light mediators and $(g-2)_μ$ through detection of coherent elastic neutrino nucleus scattering at COHERENT
论文作者
论文摘要
我们介绍了从相干CE $ν$ ns实验的当前数据分析获得的几个光玻色介质模型的参数的约束。 We consider a variety of vector boson mediator models: the so-called universal, the $B-L$ and other anomaly-free $U(1)'$ gauge models with direct couplings of the new vector boson with neutrinos and quarks, and the anomaly-free $L_e-L_μ$, $L_e-L_τ$, and $L_μ-L_τ$ gauge models where the coupling of the new vector boson用夸克通过动力学混合在一环水平上与光子混合产生。我们还考虑了一个具有新的光标量玻色介质的模型，为简单起见，它可以与夸克和叶子具有通用耦合。由于连贯的CE $ν$ NS数据与标准模型预测的横截面非常合适，因此对数据的分析产生了对新的Boson介体的质量和耦合的限制，这些质量和耦合依赖于正在考虑的每个模型中的夸克和中微子的费用。我们将这些约束与在其他实验中获得的限制以及可以解释MUON $ G-2 $异常的值进行比较，在该模型中，Muon伴侣与新的Boson介体伴侣。
We present the constraints on the parameters of several light boson mediator models obtained from the analysis of the current data of the COHERENT CE$ν$NS experiment. We consider a variety of vector boson mediator models: the so-called universal, the $B-L$ and other anomaly-free $U(1)'$ gauge models with direct couplings of the new vector boson with neutrinos and quarks, and the anomaly-free $L_e-L_μ$, $L_e-L_τ$, and $L_μ-L_τ$ gauge models where the coupling of the new vector boson with the quarks is generated by kinetic mixing with the photon at the one-loop level. We consider also a model with a new light scalar boson mediator that is assumed, for simplicity, to have universal coupling with quarks and leptons. Since the COHERENT CE$ν$NS data are well-fitted with the cross section predicted by the Standard Model, the analysis of the data yields constraints for the mass and coupling of the new boson mediator that depend on the charges of quarks and neutrinos in each model under consideration. We compare these constraints with the limits obtained in other experiments and with the values that can explain the muon $g-2$ anomaly in the models where the muon couples to the new boson mediator.
