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Study of scalar nonstandard interaction at the Protvino to super-ORCA experiment

2024; American Physical Society; Volume: 109; Issue: 9 Linguagem: Inglês

10.1103/physrevd.109.095038

2470-0037

Dinesh Kumar Singha, Rudra Majhi, Lipsarani Panda, Monojit Ghosh, Rukmani Mohanta,

Cosmology and Gravitation Theories

In this paper we have studied the phenomenon of nonstandard interaction mediated by a scalar field (SNSI) in the context of P2SO experiment and compared its sensitivity with DUNE. In particular, we have studied the capability of these two experiments to put bounds on the diagonal SNSI parameters, i.e., η e e , η μ μ , and η τ τ and studied the impact of these parameters on the determination of neutrino mass ordering, octant of θ 23 and C P violation (CPV). In our analysis we find that, the parameter Δ m 31 2 has a nontrivial role if one wants estimate the bounds on η μ μ and η τ τ assuming SNSI does not exist in nature. Our results show that sensitivity of P2SO and DUNE to constraint η μ μ and η τ τ are similar whereas the sensitivity of DUNE is slightly better for η e e . We find that the mass ordering and CPV sensitivities are mostly affected by η e e compared to η μ μ and η τ τ if one assumes SNSI exists in nature. On the other hand, octant sensitivity is mostly affected by η μ μ and η τ τ . These sensitivities can be either higher or lower than the standard three flavor scenario depending on the relative sign of the SNSI parameters. Regarding the precision of atmospheric mixing parameters, we find that the precision of θ 23 deteriorates significantly in the presence of η μ μ and η τ τ . Published by the American Physical Society 2024