Texture zeroes and discrete flavor symmetries in light and heavy Majorana neutrino mass matrices: a bottom-up approach

Details Texture zeroes and discrete flavor symmetries in light and heavy Majorana neutrino mass matrices: a bottom-up approach Texture zeroes and discrete flavor symmetries in light and heavy Majorana neutrino mass matrices: a bottom-up approach

2008-12-03

arxiv.org/abs/0812.0695v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

33 pages, minor revision in section-VI (A)

Scientific paper

Texture zeroes in neutrino mass matrix $M_\nu$ may give us hints about the symmetries involved in neutrino mass generation. We examine the viability of such texture zeroes in a model independent way through a bottom-up approach. Using constraints from the neutrino oscillation data, we develop an analytic framework that can identify these symmetries and quantify deviations from them. We analyze the textures of $M_\nu$ as well as those of $M_M$, the mass matrix of heavy Majorana neutrinos in the context of Type-I seesaw. We point out how the viability of textures depends on the absolute neutrino mass scale, the neutrino mass ordering and the mixing angle $\theta_{13}$. We also examine the compatibility of discrete flavor symmetries like $\mu$--$\tau$ exchange and $S_3$ permutation with the current data. We show that the $\mu-\tau$ exchange symmetry for $M_\nu$ can be satisfied for any value of the absolute neutrino mass, but for $M_\nu$ to satisfy the $S_3$ symmetry, neutrino masses have to be quasi-degenerate. On the other hand, both these symmetries are currently allowed for $M_M$ for all values of absolute neutrino mass and both mass orderings.

Affiliated with

Also associated with

No associations

Rating

Texture zeroes and discrete flavor symmetries in light and heavy Majorana neutrino mass matrices: a bottom-up approach does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Texture zeroes and discrete flavor symmetries in light and heavy Majorana neutrino mass matrices: a bottom-up approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Texture zeroes and discrete flavor symmetries in light and heavy Majorana neutrino mass matrices: a bottom-up approach will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-625195