Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-02-27
Phys.Rev.D78:015002,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, 2 figures
Scientific paper
10.1103/PhysRevD.78.015002
Generic SO(10) GUT models suffer from the problem that Planck scale induced non-renormalizable proton decay operators require extreme suppression of their couplings to be compatible with present experimental upper limits. One way to resolve this problem is to supplement SO(10) by simple gauged discrete symmetries which can also simultaneously suppress the renormalizable R-parity violating ones when they occur and make the theory "more natural". Here we discuss the phenomenological viability of such models. We first show that for both classes of models, e.g the ones that use ${\bf 16}_H$ or ${\bf 126}_H$ to break B-L symmetry, the minimal Higgs content which is sufficient for proton decay suppression is inadequate for explaining fermion masses despite the presence of all apparently needed couplings. We then present an extended ${\bf 16}_H$ model, with three {\bf 10} and three {\bf 45}-Higgs, where is free of this problem. We propose this as a realistic and "natural" model for fermion unification and discuss the phenomenology of this model e.g. its predictions for neutrino mixings and lepton flavor violation.
Azatov A. T.
Mohapatra Rabindra N.
No associations
LandOfFree
Flavor Physics in SO(10) GUTs with Suppressed Proton decay Due to Gauged Discrete Symmetry 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 Flavor Physics in SO(10) GUTs with Suppressed Proton decay Due to Gauged Discrete Symmetry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flavor Physics in SO(10) GUTs with Suppressed Proton decay Due to Gauged Discrete Symmetry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-25101