咨询与建议

看过本文的还看了

相关文献

该作者的其他文献

文献详情 >Neutrino Oscillations and Supe... 收藏

Neutrino Oscillations and Superluminal Propagation,in OPERA or Otherwise

作     者:Joao Magueijo 

作者机构:Theoretical PhysicsBlackett LaboratoryImperial CollegeLondonUK 

出 版 物:《Journal of Modern Physics》 (现代物理(英文))

年 卷 期:2013年第4卷第1期

页      面:76-81页

学科分类:1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主  题:Neutrino Oscillations Superluminal Propagation 

摘      要:We digress on the implications of recent claims of superluminal neutrino propagation. No matter how we turn it around such behaviour is very odd and sits uncomfortably even within “far-fetched theories. In the context of non-linear realizations of the Lorentz group (where superluminal misbehaviour is run of the mill) one has to accept rather contrived constructions to predict superluminal properties for the neutrino. The simplest explanation is to require that at least one of the mass states be tachyonic. We show that due to neutrino mixing, the flavor energy does not suffer from the usual runaway pathologies of tachyons. For non-tachyonic mass states the theories become more speculative. A neutrino specific dispersion relation is exhibited, rendering the amplitude of the effect reasonable for a standard Planck energy. This uses the fact that the beam energy is close to the geometrical average of the neutrino and Planck mass;or, seen in another way, the beam energy is unexceptional but its gamma factor is very large. A dispersion relation crossing over from a low energy bradyonic branch to a high energy tachyonic one is also considered. We comment on consistency with SN 1987Awithin these models.

读者评论 与其他读者分享你的观点