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Record |
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Author  |
Xu, Y.H.; Froustey, J.; Fuller, G.M.; Graf, L.; Patwardhan, A.V. |
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Title |
Neutrino helicity oscillations in astrophysical environments: A many-body approach |
Type |
Journal Article |
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Year |
2026 |
Publication |
Physical Review D |
Abbreviated Journal |
Phys. Rev. D |
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Volume |
114 |
Issue |
6 |
Pages |
063016 - 23pp |
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Keywords |
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Abstract |
Neutrino rest mass enables left-handed states to “flip” to right-handed states and vice versa. In-medium effects can enhance the probability for such spin flip. We demonstrate that a full many-body calculation of this process in neutrino-dense environments can lead to spin-flip probabilities that exceed by orders of magnitude those calculated with mean-field treatments. We study simple configurations with a few neutrinos in well-defined momentum states, for which we show that the helicity conversion enhancement is connected to many-body momentum exchange. Such an effect would therefore be missed in a calculation that considers only forward processes. We speculate on the potential astrophysical implications of these results and the range of applicability of our calculation and its limitations. |
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Address |
[Xu, Yiheng; Fuller, George M.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA, Email: y7xu@physics.ucsd.edu; |
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Thesis |
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Publisher |
Amer Physical Soc |
Place of Publication |
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Language |
English |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
2470-0010 |
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Notes |
WOS:001877855700001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
7452 |
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