Impact of lepton flavor universality violation on CP-violation sensitivity of long-baseline neutrino oscillation experiments
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- 作者：C. Soumya ; R. Mohanta
- 刊名：The European Physical Journal C
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：77
- 期：1
- 全文大小：908KB
- 刊物类别：Physics and Astronomy
- 刊物主题：Elementary Particles, Quantum Field Theory; Nuclear Physics, Heavy Ions, Hadrons; Quantum Field Theories, String Theory; Measurement Science and Instrumentation; Astronomy, Astrophysics and Cosmology;
- 出版者：Springer Berlin Heidelberg
- ISSN：1434-6052
- 卷排序：77
文摘
The observation of neutrino oscillation as well as the recent experimental results on lepton flavor universality (LFU) violation in B meson decays are indications of new physics beyond the standard model. Many theoretical models, which are introduced in the literature as an extension of SM to explain these observed deviations in LFU, lead to a new kind of interactions, the so-called non-standard interaction (NSI) between the elementary particles. In this paper, we consider a model with an additional \(Z'\) boson (which is quite successful in explaining the observed LFU anomalies) and analyze its effect in the lepton flavor violating (LFV) \(B_d\rightarrow \tau ^\pm e^\mp \) decay modes. From the present upper bound of the \(B_d\rightarrow \tau ^\pm e^\mp \) branching ratio, we obtain the constraints on the new physics parameters, which are related to the corresponding NSI parameters in the neutrino sector by \(SU(2)_L\) symmetry. These new parameters are expected to have potential implications in the neutrino oscillation studies and in this work we investigate the possibility of observing the effects of these interactions in the currently running and upcoming long-baseline experiments, i.e., NO\(\nu \)A and DUNE, respectively.