NEUTRINO EVOLUTION

Theory and astrophysical applications of neutrino flavor evolution

Coordinatore	MAX PLANCK GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.    more  Organization address address: Hofgartenstrasse 8 city: MUENCHEN postcode: 80539 contact info Titolo: Dr. Nome: Georg Cognome: Raffelt Email: send email Telefono: -32354274 Fax: -3226744
Nazionalità Coordinatore	Germany [DE]
Totale costo	151˙096 €
EC contributo	151˙096 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2007-2-1-IEF
Funding Scheme	MC-IEF
Anno di inizio	2009
Periodo (anno-mese-giorno)	2009-08-01   -   2011-07-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	MAX PLANCK GESELLSCHAFT ZUR FOERDERUNG DER WISSENSCHAFTEN E.V.  Organization address address: Hofgartenstrasse 8 city: MUENCHEN postcode: 80539 contact info Titolo: Dr. Nome: Georg Cognome: Raffelt Email: send email Telefono: -32354274 Fax: -3226744	DE (MUENCHEN)	coordinator	0.00

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 Obiettivo del progetto (Objective)

'Neutrino flavor oscillations in the astrophysical and cosmological context often require to go beyond the usual amplitude-level treatment that is typical for laboratory applications. Instead, a Boltzmann kinetic equation in terms of matrices of densities in flavor space is required that captures in a consistent way both the effect of oscillations, the refractive effect of a background medium, and collisions. We propose to study Boltzmann kinetic equations for neutrino oscillations in various astrophysical and cosmological settings where a background medium or neutrinos themselves play a major role. We propose to develop this formalism further to allow for numerical solutions in terms of a Monte Carlo event-generator treatment that will be applied to neutrinos produced by dark matter annihilation in the Sun or Earth and to neutrinos emitted from the collapsed core of a supernova where both collisions and collective neutrino-neutrino refractive effects are important. In addition, it is proposed to study the Boltzmann kinetic equation that governs flavor effects in leptogenesis.'

Introduzione (Teaser)

Neutrinos are neutral elementary particles created by nuclear reactions such as those in our Sun and other stars. EU-funded researchers sought to advance our understanding of their interactions in deep space with new mathematical models and signal detection methods.