MeV scale leptonic force for cosmic neutrino spectrum and muon anomalous magnetic moment
MeV scale leptonic force for cosmic neutrino spectrum and muon anomalous magnetic moment
复制标题
DOI：
10.1103/physrevd.93.013014
复制
发表时间：
2015-08
影响因子：
5
通讯作者：
T. Araki;F. Kaneko;T. Ota;J. Sato;T. Shimomura
中科院分区：
文献类型：
--
作者：
T. Araki;F. Kaneko;T. Ota;J. Sato;T. Shimomura
由IceCube合作报告的宇宙中微子谱的特征图案和长期存在的理论与实验之间的不一致的μ子异常磁矩的同时解释由一个额外的轻子力介导的规范场与MeV尺度的质量。在不同的宇宙中微子源红移分布假设下，利用新的轻子力计算了宇宙中微子与宇宙中微子背景的散射，得到了宇宙中微子的散射通量。我们的分析揭示了轻子物理在PeV、MeV和eV三个不同尺度下的关系，并为宇宙中微子源的分布和中微子质谱提供了可能的线索。
Characteristic patterns of cosmic neutrino spectrum reported by the IceCube collaboration and long-standing inconsistency between theory and experiment in muon anomalous magnetic moment are simultaneously explained by an extra leptonic force mediated by a gauge field with a mass of the MeV scale. With different assumptions for redshift distribution of cosmic neutrino sources, diffuse neutrino flux is calculated with the scattering between cosmic neutrino and cosmic neutrino background through the new leptonic force. Our analysis sheds light on a relation among lepton physics at the three different scales, PeV, MeV, and eV, and provides possible clues to the distribution of sources of cosmic neutrino and also to neutrino mass spectrum.