Neutrino decoherence in matter

Not scheduled
20m
Kongresshaus Stadthalle Heidelberg (Heidelberg)

Kongresshaus Stadthalle Heidelberg

Heidelberg

Neckarstaden 24 69117 Heidelberg Germany
Poster etc. Poster (not participating in poster prize competition)

Speaker

Prof. Alexander Studenikin (Moscow State University and JINR-Dubna)

Description

The phenomena of neutrino oscillations can proceed only in the case of the coherent superposition of neutrino mass states. An external environment can modify a neutrino evolution in a way that conditions for the coherent superposition of neutrino mass states are violated. Such a violation results in quantum decoherence of neutrino states and leads to suppression of flavor neutrino oscillations. We consider the influence of the neutrino radioactive decay in dense media on neutrino oscillations, and the corresponding damping of neutrino oscillations in the presence of an electron media and a magnetic field is calculated. The formalism of quantum electrodynamics of open systems is used in the performed evaluations. The studied phenomena can be significant for description of neutrino oscillations in extreme conditions of astrophysical environments peculiar to supernovae, neutron stars or quasars.
Session and Location Wednesday Session, Poster Wall #138 (Hölderlin-Room)
Poster included in proceedings: yes

Primary author

Mr Konstantin Stankevich (Faculty of Physics of Moscow State University)

Co-author

Prof. Alexander Studenikin (Moscow State University and JINR-Dubna)

Presentation materials