Phys. Rev. D 78, 085012 (2008) [6 pages]
Role of dense matter in collective supernova neutrino transformations
Abstract
References (39)
Citing Articles
A. Esteban-Pretel, 1 A. Mirizzi, 2,3 S. Pastor, 1 R. Tomàs, 4 G. G. Raffelt, 2 P. D. Serpico, 5 and G. Sigl4,61Institut de Física Corpuscular (CSIC-Universitat de València), Edifici Instituts d'Investigació, Apartado 22085, 46071 València, Spain
2Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, 80805 München, Germany
3Istituto Nazionale di Fisica Nucleare, Roma, Italy
4II. Institut für Theoretische Physik, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany
5Center for Particle Astrophysics, Fermi National Accelerator Laboratory, Batavia, Illinois 60510-0500, USA
6APC (AstroParticules et Cosmologie), UMR 7164 (CNRS, Université Paris 7, CEA, Observatoire de Paris), 10, rue Alice Domon et Léonie Duquet, 75205 Paris Cedex 13, France
Received 16 July 2008; published 16 October 2008
For neutrinos streaming from a supernova core, dense matter suppresses self-induced flavor transformations if the electron density ne significantly exceeds the neutrino density nnu in the conversion region. If ne is comparable to nnu, one finds multiangle decoherence, whereas the standard self-induced transformation behavior requires that in the transformation region nnu is safely above ne. This condition need not be satisfied in the early phase after the supernova core bounce. Our new multiangle effect is a subtle consequence of neutrinos traveling on different trajectories when streaming from a source that is not pointlike.
©2008 The American Physical Society
| URL: |
http://link.aps.org/doi/10.1103/PhysRevD.78.085012
|
| DOI: |
10.1103/PhysRevD.78.085012 |
| PACS: |
14.60.Pq;
97.60.Bw
|
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