Speaker
Description
We have investigated the non-standard interaction mediated by a scalar field at the upcoming long-baseline neutrino experiments, Protvino to Super-ORCA (P2SO) and Deep Underground Neutrino Experiment (DUNE). Specifically, we have studied the sensitivity of these two experiments to constrain the diagonal Scalar Non-standard interaction (SNSI) parameters $\eta_{ee}$, $\eta_{\mu \mu}$ and $\eta_{\tau \tau}$ and how the measurements of mass hierarchy, octant of $\theta_{23}$ and CP violation (CPV) sensitivity is affected in the presence of SNSI. Our key finding is that $\Delta m^{2}_{31}$ has a very non-trivial behavior in the presence of $\eta_{\mu \mu}$ and $\eta_{\tau \tau}$ when we consider SNSI does not exist in nature. Both the experiments are very sensitive to these SNSI parameters, but for $\eta_{ee}$, DUNE provides a stringent bound compared to P2SO. Mass hierarchy and CPV sensitivity are affected mainly by $\eta_{ee}$ compared to the other two parameters. In contrast, octant sensitivity is mainly affected by $\eta_{\mu \mu}$ and $\eta_{\tau \tau}$ if we consider, SNSI to exist in nature. The sensitivity of the measurements is either higher or lower than that of the standard case, depending on the relative sign of these parameters.
| Track type | Neutrino Physics |
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