{"data":{"abstract":{"value":"
We make a strong case that the fast neutrino-flavor conversion, one of the collective flavor oscillation modes, commonly occurs in core-collapse supernovae (CCSNs). It is confirmed in the numerical data obtained in realistic simulations of CCSNs, but the argument is much more generic and applicable universally: The coherent neutrino-nucleus scattering makes the electron lepton number (ELN) change sign at some inward direction and trigger the flavor conversion in the outward direction in the preshock region. Although the ELN crossing is tiny and that is why it has eluded recognition so far, it is still large enough to induce the flavor conversion. Our findings may have important observational consequences for CCSN neutrinos.
","format":"html"},"articleType":"rapid","authors":[{"type":"Person","name":"Taiki Morinaga","firstname":"Taiki","surname":"Morinaga","affiliationIds":["a1"]},{"type":"Person","name":"Hiroki Nagakura","firstname":"Hiroki","surname":"Nagakura","affiliationIds":["a2"]},{"type":"Person","name":"Chinami Kato","firstname":"Chinami","surname":"Kato","affiliationIds":["a3"]},{"type":"Person","name":"Shoichi Yamada","firstname":"Shoichi","surname":"Yamada","affiliationIds":["a1"]}],"affiliations":[{"name":"Graduate School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan","id":"a1"},{"name":"Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08544, USA","id":"a2"},{"name":"Department of Aerospace Engineering, Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan","id":"a3"}],"date":"2020-02-25","fundings":[{"funderId":"http://dx.doi.org/10.13039/501100001691","funderName":"Japan Society for the Promotion of Science","awards":["19J21244"]},{"funderId":"http://dx.doi.org/10.13039/100000015","funderName":"U.S. Department of Energy","awards":["DE-SC0018297","00009650"]},{"funderId":"http://dx.doi.org/10.13039/501100006264","funderName":"RIKEN","awards":["hpci 160071","160211","170230","170031","170304","hp180179","hp180111","hp180239"]},{"funderId":"http://dx.doi.org/10.13039/501100004423","funderName":"Waseda University","awards":["2018K-263"]},{"funderId":"http://dx.doi.org/10.13039/501100001700","funderName":"Ministry of Education, Culture, Sports, Science and Technology","awards":[]}],"type":"article","metadata_last_modified_at":"2020-02-25T15:12:50+0000","last_modified_at":"2020-02-25T15:12:49+0000","id":"10.1103/PhysRevResearch.2.012046","identifiers":{"doi":"10.1103/PhysRevResearch.2.012046","arxiv":"arXiv:1909.13131"},"issue":{"number":"1"},"pageStart":"012046","hasArticleId":true,"numPages":6,"classificationSchemes":{"physh":{"concepts":[{"id":"42778a2b-d265-4877-9f98-99161aa3dbe3","facet":{"id":"bdb1ef91-b776-4e36-8f8f-3e93666bac1e"},"primary":false},{"id":"bf8ac618-dcbe-4098-91c1-f781ef555e5d","facet":{"id":"bdb1ef91-b776-4e36-8f8f-3e93666bac1e"},"primary":false},{"id":"703e2e58-467b-463a-949c-c451ad620e52","facet":{"id":"bdb1ef91-b776-4e36-8f8f-3e93666bac1e"},"primary":true},{"id":"fd918032-3589-4778-9f84-ab13d1639204","facet":{"id":"bdb1ef91-b776-4e36-8f8f-3e93666bac1e"},"primary":false},{"id":"ec69b3ef-eaca-44df-ab99-464871cd24f8","facet":{"id":"bdb1ef91-b776-4e36-8f8f-3e93666bac1e"},"primary":false}],"disciplines":["0f4313da-ec73-46f5-b24f-521a1fcb6db7"]}},"publisher":{"name":"APS"},"rights":{"rightsStatement":"Published by the American Physical Society","copyrightYear":2020,"copyrightHolders":[],"creativeCommons":true,"licenses":[{"url":"https://creativecommons.org/licenses/by/4.0/","licenseStatement":"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."}]},"journal":{"id":"PRRESEARCH","abbreviatedName":"Phys. Rev. Research","name":"Physical Review Research"},"title":{"value":"Fast neutrino-flavor conversion in the preshock region of core-collapse supernovae","format":"html"},"volume":{"number":"2"}}}