论文标题

宇宙遗物中微子的均等违规和手性振荡

Parity Violation and Chiral Oscillation of Cosmological Relic Neutrinos

论文作者

Ge, Shao-Feng, Pasquini, Pedro

论文摘要

中微子振荡的常规推导将中微子质量本征为平面波,并具有整体进化阶段。然而,由于弱相互作用的固有差异性质,只能作为初始条件产生左手中微子。另一方面,中微子质量术语将左手分量与右手形成连接到右手,并且不可避免地会导致后期通过振荡产生。这种手性振荡对检测宇宙遗物中微子的检测有重大影响。事件速率比常规预测降低2倍。

The conventional derivation of neutrino oscillation treats neutrino mass eigenstate as plane wave with an overall evolution phase. Nevertheless, due to the intrinsic parity-violating nature of weak interactions, only the left-chiral neutrino can be produced as initial condition. On the other hand, the neutrino mass term connects the left-chiral component to the right-chiral one and unavoidably leads to generation of the later through oscillation. This chiral oscillation has significant consequences on the detection of the cosmological relic neutrinos. The event rate is reduced by a factor of 2 than the conventional prediction.

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