Speaker
Description
The recent anomalies observed in NO$\nu$A and T2K experiments within the standard three-flavor neutrino oscillation model suggest the possibility of physics beyond the Standard Model (SM). To address this, we explore Non-Standard Interaction (NSI) parameters that could explain these anomalies by analyzing the violation of Leggett-Garg-type inequalities (LGtI) in the framework of three-flavor neutrino oscillations. Specifically, we examine LGtI violations in scenarios involving complex NSI parameters, focusing on $\epsilon_{e\mu}$ and $\epsilon_{e\tau}$ couplings in long-baseline accelerator experiments, under both normal (NO) and inverted mass ordering (IO). Our findings indicate that LGtI violations are enhanced in the NO scenario for the $\epsilon_{e\tau}$ coupling in experiments like T2K, NO$\nu$A, and DUNE. Additionally, in the DUNE setup for IO, LGtI violations above 8.5 GeV could suggest the presence of new physics associated with the $\epsilon_{e\tau}$ NSI scenario.
| Field of contribution | Phenomenology |
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