Regular Article - Theoretical Physics
An SU(3) symmetry for light neutrinos
National Centre for Physics, Quaid-i-Azam University, Islamabad, 45320, Pakistan
* e-mail: firstname.lastname@example.org
Revised: 17 April 2007
Published online: 6 June 2007
It is proposed that light neutrinos form a triplet in a global SU(3) symmetry in the mass eigenstate basis. Assuming that the SU(3) symmetry is broken in the direction , and after going to the flavor basis, we predict the atmospheric mixing angles sin2θ23=0.5 and sinθ13=0, if νμ–ντ symmetry is assumed. In the flavor basis, the diagonal part of the matrix coefficient of b (the dominant part) is found to transform like . Imposing the same condition on the matrix coefficient of a fixes the solar mixing angle, . The implications for neutrinoless double beta decay are discussed.
© Springer-Verlag / Società Italiana di Fisica, 2007