Preprint
Probing scalar non-standard interaction of supernova neutrinos in next-generation neutrino experiments
ArXiv.org
Cornell University
08/22/2025
DOI: 10.48550/arxiv.2508.16510
Abstract
A new neutrino-matter interaction can potentially affect neutrino propagation through matter. In this work, we explore the impact of a flavor-conserving scalar-mediated non-standard neutrino interaction in the supernova neutrino flux. We observe that the presence of scalar interaction involving muon and tau neutrinos (parameterized as ημμ and ητ τ , respectively) can invert the neutrino mass eigenstate in which three neutrino flavor states are produced inside the Supernova core, resulting in a significant modification of the electron neutrino flux from supernova reaching the Earth. In the context of the DUNE experiment, we estimate the number of supernova neutrino events in the presence of scalar non-standard neutrino interaction ημμ or ητ τ and contrast with the case without scalar- mediated non-standard interactions. Our results indicate that such scalar interactions introduce a new degeneracy in the measurement of neutrino mass ordering from super- nova neutrinos. We show how the ¯νe event distribution in Hyper-Kamiokande experiment can help resolve the degeneracy between a model with new scalar interactions for normal ordered neutrino masses and the standard model with inverted mass ordering.
Details
- Title: Subtitle
- Probing scalar non-standard interaction of supernova neutrinos in next-generation neutrino experiments
- Creators
- Sudipta DasMary Hall Reno
- Resource Type
- Preprint
- Publication Details
- ArXiv.org
- DOI
- 10.48550/arxiv.2508.16510
- ISSN
- 2331-8422
- Publisher
- Cornell University; Ithaca, New York
- Language
- English
- Date posted
- 08/22/2025
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984949519102771
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