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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 542830.0, MPI für Physik / MPI für Physik
Role of dense matter in collective supernova neutrino transformations
Authors:Esteban-Pretel, A.; Mirizzi, A.; Pastor, S.; Tomas, R.; Raffelt, G. G.; Serpico, P. D.; Sigl, G.
Date of Publication (YYYY-MM-DD):2008
Title of Journal:Physical Review D
Journal Abbrev.:Phys.Rev.D
Issue / Number:78
Start Page:085012
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:For neutrinos streaming from a supernova (SN) core, dense matter suppresses self-induced flavor transformations if the electron density n_e significantly exceeds the neutrino density n_nu in the conversion region. If n_e is comparable to n_nu one finds multi-angle decoherence, whereas the standard self-induced transformation behavior requires that in the transformation region n_nu is safely above n_e. This condition need not be satisfied in the early phase after supernova core bounce. Our new multi-angle effect is a subtle consequence of neutrinos traveling on different trajectories when streaming from a source that is not point-like.
Classification / Thesaurus:Astroparticle Physics
Comment of the Author/Creator:7 pages, 2 figures. Published version
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2008-66
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/arxiv:0807.0659
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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