Speaker
Description
The limitations of the Standard Model in explaining neutrino masses and neutrino mixing leads
to the exploration of frameworks beyond the Standard Model (BSM). The possibility of neutrinos
interacting with fermions via a scalar mediator is one of the interesting prospects. The study of
neutrino non-standard interactions (NSI) is a well-motivated phenomenological scenario to explore
new physics beyond the Standard Model. These new interactions may alter the standard neutrino
oscillation probabilities, potentially leading to observable effects in experiments. It also allows for
the exploration of absolute neutrino masses via oscillation experiments. It can modify the oscillation
probabilities, which in turn can affect the physics sensitivities in long-baseline experiments. The linear scaling of the effects of scalar NSI with matter density also motivates its exploration in long-baseline (LBL) experiments.
We will present our study on the impact of a scalar-mediated NSI on the mass ordering (MO) sensitivities of three long-baseline neutrino experiments, i.e., DUNE, HK and KNO. We study the impact on MO sensitivities at these experiments assuming that scalar NSI parameters are present in nature and are known from other non-LBL experiments. The presence of scalar NSI can notably impact the MO sensitivities of these experiments. Furthermore, we analyze the potential synergy by combining data from DUNE with HK and HK+KNO, thereby exploring a broader parameter space.
| Working Group | WG 1: Neutrino Oscillation Physics |
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