Sterile neutrino signals from supernovae
| dc.creator | Keränen, P. | |
| dc.creator | Maalampi, J. | |
| dc.creator | Myyryläinen, M. | |
| dc.creator | Riittinen, J. | |
| dc.date | 2007-08-24 | |
| dc.date | 2007-11-22 | |
| dc.date.accessioned | 2026-07-07T11:18:52Z | |
| dc.date.available | 2026-07-07T11:18:52Z | |
| dc.description | We investigate the effects of a mixing of active and sterile neutrinos on the ratios of supernova electron neutrino flux ($F_e$) and antineutrino flux ($F_{\bar e}$) to the total flux of the other neutrino and antineutrino flavours ($F_a$). We assume that the heaviest (in the normal hierarchy) Standard Model neutrino $ν_3$ mixes with a sterile neutrino resulting in a pair of mass eigenstates with a small mass gap. Using the density matrix formalism we solve numerically the the evolution of neutrino states in the envelope of a supernova and determine the flux ratios $F_e/F_a$ and $F_{\bar{e}}/F_a$ as a function of the active-sterile mixing angle and for the experimentally allowed range of the standard active-active mixing angle $θ_{13}$. | |
| dc.description | 5 pages, 3 figures. This is the corrected version to be published in Physical Review D | |
| dc.identifier | https://arxiv.org/abs/0708.3337 | |
| dc.identifier | http://arxiv.org/abs/0708.3337 | |
| dc.identifier | Phys.Rev.D76:125026,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.76.125026 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/193493 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Sterile neutrino signals from supernovae | |
| dc.type | text |