Phys. Rev. D 62, 053002 (2000) [6 pages]Symplectic symmetry of the neutrino mass and the seesaw mechanismReceived 28 February 2000; published 19 July 2000 We investigate the algebraic structure of the most general neutrino mass Hamiltonian and place the seesaw mechanism in an algebraic framework. We show that this Hamiltonian can be written in terms of the generators of an Sp(4) algebra. The Pauli-Gürsey transformation is an SU(2) rotation which is embedded in this Sp(4) group. This SU(2) also generates the seesaw mechanism. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.62.053002
DOI:
10.1103/PhysRevD.62.053002
PACS:
14.60.Pq, 11.30.Na
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