arXiv 1508.030912015-08hep-phhep-th

加速态中的中微子振荡

Neutrino oscillations in accelerated states

Dharam Vir Ahluwalia, Lance Labun, Giorgio Torrieri

备注：: Accepted for publication, European Physical Journal A (EPJA) Discussion considerably expanded, corrected and updated, main conclusions unchanged

摘要：

本文在中微子振荡的背景下讨论加速质子的逆$β$衰变。过程$p\rightarrow n \ell^+ ν_\ell$在运动学上是允许的，因为加速场提供了初始和最终状态之间的静止能量差。$p\to n$转化率可以在实验室坐标系（质子加速）或共动坐标系（质子静止，由于Unruh效应与$\ell$和$ν_\ell$的有效热浴相互作用）中进行评估。通过显式计算，我们发现在考虑中微子振荡的情况下，两个坐标系中的速率是不一致的，因为弱相互作用耦合到电荷本征态，而引力耦合到中微子质量本征态.这个矛盾可以通过实验来解决，可能会产生关于中微子质量起源的新信息。

英文摘要：

We discuss the inverse $β$-decay of accelerated protons in the context of neutrino oscillations. The process $p\rightarrow n \ell^+ ν_\ell$ is kinematically allowed because the accelerating field provides the rest energy difference between initial and final states. The rate of $p\to n$ conversions can be evaluated in either the laboratory frame (where the proton is accelerating) or the co-moving frame (where the proton is at rest and interacts with an effective thermal bath of $\ell$ and $ν_\ell$ due to the Unruh effect). By explicit calculation, we show the rates in the two frames disagree when taking into account neutrino oscillations, because the weak interaction couples to charge eigenstates whereas gravity couples to neutrino mass eigenstates. The contradiction could be resolved experimentally, potentially yielding new information on the origins of neutrino masses.

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摘要：

英文摘要：

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