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One-loop effects in the neutrino matter potential and implications for nonstandard interactions

Jihong Huang1,2,*, Tommy Ohlsson3,4,†, Sampsa Vihonen3,4,‡, and Shun Zhou1,2,§

  • *Contact author: huangjh@ihep.ac.cn
  • †Contact author: tohlsson@kth.se
  • ‡Contact author: vihonen@kth.se
  • §Contact author: zhoush@ihep.ac.cn
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Phys. Rev. D 112, 116014 – Published 17 December, 2025

DOI: https://doi.org/10.1103/3r2b-1hcc

Abstract

In this work, we emphasize that it is necessary to take into account one-loop corrections of 2.0% to the neutrino matter potential in the precision measurements of neutrino oscillation parameters and in the experimental searches for new physics beyond the Standard Model. With the numerical simulation of the DUNE experiment, we study how radiative corrections to the matter potential affect neutrino oscillation probabilities, and thus, the event rates in the presence of neutrino nonstandard interactions (NSIs). We find that neglecting one-loop corrections may lead to wrong conclusions for the discovery of NSIs. The implications for the determination of neutrino mass ordering and constraints on the NSI parameters in future long-baseline accelerator neutrino experiments are explored in a quantitative way.

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Phys. Rev. D 112, 116014– Published 17 December, 2025
  • Received 15 October 2025
  • Accepted 24 November 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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