Probing Standard Model and Beyond with Reactor CE$\nu$NS Data of CONUS+ experiment

TL;DR

This paper analyzes reactor CE$ u$NS and E$ u$ES data from the CONUS+ experiment to test the Standard Model and explore new physics, setting constraints on neutrino properties and BSM scenarios.

Contribution

It introduces a combined analysis of CE$ u$NS and E$ u$ES data to improve constraints on the electroweak sector and BSM physics, including neutrino electromagnetic properties.

Findings

Constraints on the weak mixing angle within the SM.

Limits on light mediators from NGI models.

Bounds on neutrino charge radius, millicharge, and magnetic moment.

Abstract

We explore the potential of reactor antineutrino-induced Coherent Elastic Neutrino-Nucleus Scattering (CE$\nu$NS) data from the CONUS+ experiment to investigate both the Standard Model (SM) and Beyond Standard Model (BSM) scenarios. Alongside CE$\nu$NS, Elastic Neutrino-Electron Scattering (E$\nu$ES) events are also included in our analysis, enabling more stringent constraints on new physics. Within the SM, we examine the weak mixing angle as a precision test of the electroweak sector. For BSM scenarios, we constrain the parameter space of light mediators arising from neutrino generalized interactions (NGI), while also setting limits on the electromagnetic properties of neutrinos, including their charge radius, millicharge, and magnetic moment.