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Neutrino Propagation When Mass Eigenstates and Decay Eigenstates Mismatch.
- Source :
-
Physical review letters [Phys Rev Lett] 2022 Jul 01; Vol. 129 (1), pp. 011802. - Publication Year :
- 2022
-
Abstract
- We point out that the Hermitian and anti-Hermitian components of the effective Hamiltonian for decaying neutrinos cannot be simultaneously diagonalized by unitary transformations for all matter densities. We develop a formalism for the two-flavor neutrino propagation through matter of uniform density, for neutrino decay to invisible states. Employing a resummation of the Zassenhaus expansion, we obtain compact analytic expressions for neutrino survival and conversion probabilities, to first and second order in the "mismatch parameter" γ[over ¯].
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 129
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 35841563
- Full Text :
- https://doi.org/10.1103/PhysRevLett.129.011802