Impact of scalar NSI with off-diagonal parameters at DUNE and P2SO

Abstract

In this paper, we studied the impact of the off-diagonal SNSI parameters in the future long-baseline neutrino oscillation experiments DUNE and P2SO. In our analysis, we found that the sensitivities of these experiments altered in a very non-trivial way due to the presence of these parameters. Depending on the values of these parameters, they can either completely mimic the standard scenario or can wash out their CP sensitivity. For large values of parameters ${\eta }_{e\mu }$ and ${\eta }_{e\tau }$, we obtained larger mass ordering and octant sensitivities as compared to the standard three flavour scenario. For the parameter ${\eta }_{\mu \tau }$, the mass ordering sensitivity and the precision of $\Delta m_{31}^2$ deteriorated compared to the standard scenario. Our results also showed that the sensitivities were significantly influenced by the phases of the off-diagonal parameters.

Matches with the EPJC published version. 18 pages, 8 figures, 4 tables

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