New physics at nuSTORM
New physics at nuSTORM
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DOI：
10.1103/physrevd.103.075009
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发表时间：
2020-07
期刊：
影响因子：
--
通讯作者：
K. Chakraborty;S. Goswami;K. Long
中科院分区：
文献类型：
--
作者：
K. Chakraborty;S. Goswami;K. Long
在这项工作中，我们研究了nuSTORM作为两个新的物理场景--无中微子和中微子混合矩阵的非么正性--的探测的有用性。对于稀薄中微子，我们说明了中性电流事件与带电电流事件相结合来限制有效混合角、稀薄混合角和稀薄混合角的重要性。我们还研究了当三代中微子混合矩阵不是么正矩阵时，nuSTORM在中微子振荡物理研究中的作用。在此背景下，我们阐明了在考虑带电电流和中性电流事件的情况下，nuSTORM在约束各种非么正参数如$\α_{11}$、$|\α_{21}|$和$\α_{22}$中所起的作用。
In this work we investigate the usefulness of nuSTORM as a probe of two new-physics scenarios which are sterile neutrinos and non-unitarity of the neutrino mixing matrix. For the sterile neutrino we show the importance of the neutral current events when combined with the charged current events to constrain the effective mixing angle, $\theta_{\mu \mu}$, and the sterile mixing angles $\theta_{14}$ and $\theta_{24}$. We also study the role nuSTORM will play in the study of neutrino oscillation physics if the three generation neutrino mixing matrix is non-unitary. In this context we elucidate the role of nuSTORM, considering both charged current and neutral current events, in constraining the various non-unitarity parameters such as $\alpha_{11}$, $|\alpha_{21}|$ and $\alpha_{22}$.