Suppression of Self-Induced Flavor Conversion in the Supernova Accretion Phase

Дата и время публикации : 2011-09-16T12:49:09Z

Авторы публикации и институты :
Srdjan Sarikas
Georg G. Raffelt
Lorenz Hüdepohl
Hans-Thomas Janka

Ссылка на журнал-издание: Phys. Rev. Lett. 108, 061101 (2012)
Коментарии к cтатье: 4 pages, 5 figures; minor edits, matches the version published in PRL
Первичная категория: astro-ph.SR

Все категории : astro-ph.SR, hep-ph

Краткий обзор статьи: Self-induced flavor conversions of supernova (SN) neutrinos can strongly modify the flavor dependent fluxes. We perform a linearized flavor stability analysis with accretion-phase matter profiles of a 15 M_sun spherically symmetric model and corresponding neutrino fluxes. We use realistic energy and angle distributions, the latter deviating strongly from quasi-isotropic emission, thus accounting for both multi-angle and multi-energy effects. For our matter and neutrino density profile we always find stable conditions: flavor conversions are limited to the usual MSW effect. In this case one may distinguish the neutrino mass hierarchy in a SN neutrino signal if the mixing angle theta_13 is as large as suggested by recent experiments.

Category: Physics