New physics at nuSTORM

Abstract

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 ${\alpha }_{22}$.

arXiv comment26 pages, 7 figures, 1 new figure added, New references added, Updated to the version accepted in PRD

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Cited by in corpus (1)

• Non-unitary neutrino mixing in short and long-baseline experiments