Study of the beyond standard model interaction using Coherent Elastic Neutrino-Nucleus Scattering process

TL;DR

This study evaluates the potential of the Indian Coherent Neutrino-nucleus Scattering Experiment (ICNSE) to constrain beyond standard model neutrino interactions, demonstrating significant sensitivity improvements with combined detector types.

Contribution

It provides the first phenomenological analysis of ICNSE's capacity to limit non-standard neutrino interactions using different detector configurations.

Findings

ICNSE can significantly constrain NSI parameter space.

Combining sapphire and germanium detectors improves sensitivity.

Results show potential to reduce degeneracies between NSI parameters.

Abstract

Phenomenological studies are carried out to find the potential reach of a detector to constraints on possible beyond the standard model general neutrino interactions in the neutrino-quark sector, for the proposed Indian Coherent Neutrino-nucleus Scattering Experiment (ICNSE) at the Bhabha Atomic Research Centre in India. Reactors of different core configuration and power are used as sources of electron antineutrinos. The study has been carried out considering a target mass of 10 kg and an exposure of one year. It has been found that the ICNSE detector has a significant capacity to limit the majority of the Non-standard Interaction(NSI) parameter space. It has also been observed that a combination of results from two different types of detectors such as sapphire and high-purity germanium can significantly improve sensitivity by reducing the degeneracies between some pairs of NSI parameters to a smaller region.