{"title":"Magnetorotational Supernova Neutrino Spectra Versus Mass Ordering","authors":"V. N. Kondratyev, A. A. Saimuha","doi":"10.1134/S1063779626701182","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—Magnetic and oscillation effects in the dynamics of neutrinos emitted from a protoneutron star during a supernova explosion are considered. Nuclear scattering due to the neutral Gamow–Teller current interaction in the vicinity of the neutrino sphere is shown to result in the acceleration of neutrinos, especially, for heavy lepton components. The hardness of the electron antineutrino spectrum increases significantly due to oscillations in the outer layers of stars. Such an enhancement of the high-energy spectrum component is particularly pronounced for the inverted mass ordering and is favorable for ground-based detection of supernova neutrinos. The possibilities of Cherenkov underwater detectors—KM3NeT and Baikal-GVD—for the observation of supernova neutrinos and revealing the mass ordering are discussed.</p>","PeriodicalId":729,"journal":{"name":"Physics of Particles and Nuclei","volume":"57 5","pages":"973 - 978"},"PeriodicalIF":0.5000,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Particles and Nuclei","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063779626701182","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
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Abstract—Magnetic and oscillation effects in the dynamics of neutrinos emitted from a protoneutron star during a supernova explosion are considered. Nuclear scattering due to the neutral Gamow–Teller current interaction in the vicinity of the neutrino sphere is shown to result in the acceleration of neutrinos, especially, for heavy lepton components. The hardness of the electron antineutrino spectrum increases significantly due to oscillations in the outer layers of stars. Such an enhancement of the high-energy spectrum component is particularly pronounced for the inverted mass ordering and is favorable for ground-based detection of supernova neutrinos. The possibilities of Cherenkov underwater detectors—KM3NeT and Baikal-GVD—for the observation of supernova neutrinos and revealing the mass ordering are discussed.
期刊介绍：
The journal Fizika Elementarnykh Chastits i Atomnogo Yadr of the Joint Institute for Nuclear Research (JINR, Dubna) was founded by Academician N.N. Bogolyubov in August 1969. The Editors-in-chief of the journal were Academician N.N. Bogolyubov (1970–1992) and Academician A.M. Baldin (1992–2001). Its English translation, Physics of Particles and Nuclei, appears simultaneously with the original Russian-language edition. Published by leading physicists from the JINR member states, as well as by scientists from other countries, review articles in this journal examine problems of elementary particle physics, nuclear physics, condensed matter physics, experimental data processing, accelerators and related instrumentation ecology and radiology.
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