Schwetz Thomas, Segarra Alejandro
Institut für Astroteilchenphysik, Karlsruher Institut für Technologie (KIT), 76131 Karlsruhe, Germany.
Institut für Theoretische Teilchenphysik, Karlsruher Institut für Technologie (KIT), 76131 Karlsruhe, Germany.
Phys Rev Lett. 2022 Mar 4;128(9):091801. doi: 10.1103/PhysRevLett.128.091801.
We propose a method to establish time reversal symmetry violation at future neutrino oscillation experiments in a largely model-independent way. We introduce a general parametrization of flavor transition probabilities that holds under weak assumptions and covers a large class of new physics scenarios. This can be used to search for the presence of T-odd components in the transition probabilities by comparing data at different baselines but at the same neutrino energies. We show that this test can be performed already with experiments at three different baselines and might be feasible with experiments under preparation or consideration.
我们提出了一种方法，以一种很大程度上与模型无关的方式在未来的中微子振荡实验中建立时间反演对称性破缺。我们引入了味转换概率的一般参数化，它在弱假设下成立，并涵盖了一大类新物理情景。通过比较不同基线但相同中微子能量下的数据，这可用于搜索转换概率中T奇分量的存在。我们表明，这个测试已经可以用在三个不同基线的实验来进行，并且对于正在准备或考虑中的实验可能是可行的。
