论文标题
通过其他衰减通道挤压中微子部门违反洛伦兹的参数空间
Squeezing the Parameter Space for Lorentz Violation in the Neutrino Sector by Additional Decay Channels
论文作者
论文摘要
在过去的两到三十年中，中微子部门违反洛伦兹的假设吸引了科学家。许多理论论点首先支持这种违规的出现，最重要的是中微子，这构成了人类已知的“最难以捉摸的”和“最不相互作用”的粒子。明显的兴趣是将严格的界限放在中微子部门的洛伦兹侵略参数上。过去，最严格的边界是通过将中微子衰变的概率计算成一对的概率，这使得在中微子部门的lorentz违规行为中，这一过程使该过程可行，高于一定阈值。但是，如果人们考虑了中微子分裂的可能性，即中微子衰变成较低的能量中微子，则可以将更严格的边界放在洛伦兹侵略参数上，并伴有“中微子pair cerenkov辐射”。该过程的阈值可以忽略不计，可用于改善中微子部门中洛伦兹（Lorentz）侵略参数的边界。最后，我们借此机会讨论了Lorentz和仪表对称性破坏的关系，并特别强调了我们计算中采用的理论模型。
The hypothesis of Lorentz violation in the neutrino sector has intrigued scientists for the last two to three decades. A number of theoretical arguments support the emergence of such violations first and foremost for neutrinos, which constitute the "most elusive" and "least interacting" particles known to mankind. It is of obvious interest to place stringent bounds on the Lorentz-violating parameters in the neutrino sector. In the past, the most stringent bounds have been placed by calculating the probability of neutrino decay into a lepton pair, a process made kinematically feasible by Lorentz violation in the neutrino sector, above a certain threshold. However, even more stringent bounds can be placed on the Lorentz-violating parameters if one takes into account, additionally, the possibility of neutrino splitting, i.e., of neutrino decay into a neutrino of lower energy, accompanied by "neutrino-pair Cerenkov radiation". This process has negligible threshold and can be used to improve the bounds on Lorentz-violating parameters in the neutrino sector. Finally, we take the opportunity to discuss the relation of Lorentz and gauge symmetry breaking, with a special emphasis on the theoretical models employed in our calculations.
