Neutrino Masses in SU(2) x U(1) Theories

Schechter, J.; Valle, J.W.F.

doi:10.1103/PhysRevD.22.2227

Neutrino Masses in SU(2) x U(1) Theories

J. Schechter
(
- Syracuse U.
)
,
J.W.F. Valle
(
- Syracuse U.
)

Jun, 1980

28 pages

Published in:

Phys.Rev.D 22 (1980) 2227

DOI:

10.1103/PhysRevD.22.2227

Report number:

SU-4217-167,
COO-3533-167

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Abstract: (APS)

We analyze SU(2)×U(1) theories, denoted by (n, m), in which there are n neutrinos belonging to isodoublets and m neutrino isosinglets. The charged-current weak interactions are described by a rectangular matrix K which we explicitly parametrize. The neutral-current neutrino interactions are described by a square matrix P=K+K. This has the consequences that neutrinos may decay into three lighter ones and that neutrino oscillations involving neutral-current interactions should exist. The general formalism for the latter situation is given. Associated material on parametrization of unitary matrices and the quantum theory of Majorana particles is also briefly discussed.

type-1 and type-2 seesaw mechanism
non-standard neutrino interactions
GAUGE FIELD THEORY: SU(2) X U(1)
NEUTRINO: MASS
MASS: NEUTRINO
ISOSPIN: MULTIPLET
MULTIPLET: ISOSPIN
NEUTRINO: ISOSCALAR
NEUTRINO: OSCILLATION
CHARGED CURRENT

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