Neutrino electromagnetic properties: new approach to oscillations in magnetic fields - INSPIRE

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Neutrino electromagnetic properties: new approach to oscillations in magnetic fields

Jun 15, 2015

14 pages

Part of Proceedings, 14th Hellenic School and Workshops on Elementary Particle Physics and Gravity (CORFU2014) : Corfu, Greece, September 3-21, 2014, 050

Published in:

PoS CORFU2014 (2015) 050

Contribution to:

- CORFU2014
, 050

Published: Jul 29, 2015 by SISSA

e-Print:

1506.05311 [hep-ph]

DOI:

10.22323/1.231.0050

View in:

ADS Abstract Service

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Abstract: (arXiv)

Several new and interesting aspects of neutrino oscillations in a magnetic field are considered: 1) We develop a standard usually used approach to the neutrino spin oscillations in the neutrino mass basis and obtain the effective neutrino spin (and "spin-mass") oscillation Hamiltonian that can be used for description of the neutrino oscillations between different pairs of neutrino states with different masses and helicities; 2) We derive the exact solution of the Dirac equation for a massive neutrino with nonzero magnetic moment in the presence of a constant transversal magnetic field that is rotating along the direction of the neutrino propagation (the twisting magnetic field) and on the basis of the obtained energy spectrum the neutrino spin oscillation effective Hamiltonian is derive; 3) We develop a new approach to neutrino spin oscillations that is based on the description of the neutrino spin states with the corresponding spin operator that commutes with the neutrino dynamics Hamiltonian in the magnetic field. The obtained new results can have important phenomenological applications.

Note:

14 pages in Latex, based on the lecture presented by A.Studenikin at the Summer School on Standard Model and Beyond in the Corfu Summer Institute 2014, to appear in the PoS

neutrino: spin
neutrino: spin: oscillation
neutrino: oscillation
neutrino: energy spectrum
neutrino: propagation
neutrino: massive
neutrino: mass
spin: oscillation
spin: operator
Dirac equation: solution

References(19)

Figures(2)

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