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Constraints on new physics with light mediators and generalized neutrino interactions via coherent elastic neutrino nucleus scattering

S. Karadağ1,2,*, M. Deniz3,†, S. Karmakar2,4, M. K. Singh2,5, M. Demirci6, Greeshma C.2,7, H. B. Li2, S. T. Lin8, M. F. Mustamin6 et al. (TEXONO Collaboration)

M. F. Mustamin6, V. Sharma9, L. Singh7, M. K. Singh4, V. Singh7, and H. T. Wong2 (TEXONO Collaboration)

  • *Contact author: karadags@itu.edu.tr
  • †Contact author: muhammed.deniz@deu.edu.tr
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Phys. Rev. D 112, 035038 – Published 27 August, 2025

DOI: https://doi.org/10.1103/63xf-t6fz

Abstract

We investigate new physics effects on coherent elastic neutrino nucleus scattering within the framework of nonstandard interactions and generalized neutrino interactions. Additionally, we examine the possibility of light mediators from a simplified model that includes all possible Lorentz-invariant interactions of vector, axialvector, scalar, pseudoscalar, and tensor types. Constraints and allowed regions at the 90% CL for masses and couplings in each new physics scenario have been obtained through the analysis of TEXONO data, which includes two datasets from a high-purity n-type point contact germanium detector in 2016 and an advanced p-type point contact Ge detector in 2025. The results are presented in comparison with other reactor and accelerator-based neutrino experiments for complementarity.

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Phys. Rev. D 112, 035038– Published 27 August, 2025
  • Received 24 February 2025
  • Revised 27 May 2025
  • Accepted 31 July 2025
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