论文标题
使用非保存电流发现松弛力
Discovering leptonic forces using non-conserved currents
论文作者
论文摘要
Lepton编号的差异（即$ l _e -l_μ$，$ l _e -l_τ$，$l_μ -l_τ$或其组合）在标准模型中没有保守的费用，因为中微子振荡的观察结果。我们计算了在Majorana或Dirac-type中微子的情况下，相应电流的差异，并表明，在高能量极限中，矢量相互作用映射到偶联的光量表与中微子与中微子耦合的偶联，其耦合由观察到的中微子质量和混合固定。这导致了与外部光线向量相反量表的外部光线向量的振幅。通过研究这些过程，我们通过结合半leptonic erson衰变，隐形中微子衰变，中微子的双β衰减以及大爆炸核合成/超级Nova的观察来对$ l _i -l _j $设定新的约束，这可能是比以前的vector Masses下面的大量限制。这些界限对检测$ l _i -l _j $远程力的实验前景具有重要意义。
Differences in lepton number (i.e., $ L _e - L _μ$, $ L _e - L _τ$, $ L_μ- L _τ$, or combinations thereof) are not conserved charges in the Standard Model due to the observation of neutrino oscillations. We compute the divergence of the corresponding currents in the case of Majorana or Dirac-type neutrinos and show that, in the high energy limit, the vector interactions map onto those of a light scalar coupled to neutrinos with its coupling fixed by the observed neutrino masses and mixing. This leads to amplitudes with external light vectors that scale inversely with the vector mass. By studying these processes, we set new constraints on $ L _i - L _j $ through a combination of semi-leptonic meson decays, invisible neutrino decays, neutrinoless double beta decays, and observations of Big Bang Nucleosynthesis/supernova, which can be much stronger than previous limits for vector masses below an eV. These bounds have important implications on the experimental prospects of detecting $ L _i - L _j $ long-range forces.
