2010/11/30 by Yuji Kajiyama, Hiroshi Okada · 1 citation
Physics and Astronomy · #hep-ph #astro-ph.HE
paper · pdf · doi:10.1016/j.nuclphysb.2011.02.020
published as Nucl.Phys.B848:303-313,2011 · 14 pages, 2 figures, 3 tables; version accepted for publication in Nuclear Physics B
arxiv created 2011/03/12 · arxiv updated 2011/08/04
We study a new flavor symmetric model with non-Abelian discrete symmetry T13. The T13 group is isomorphic to Z13 \rtimes Z3, and it is the minimal group having two complex triplets as the irreducible representations. We show that the T13 symmetry can derive lepton masses and mixings consistently. Moreover, if we assume a gauge-singlet fermionic decaying dark matter, its decay operators are also constrained by the T13 symmetry so that only dimension six operators of leptonic decay are allowed. We find that the cosmic-ray anomalies reported by PAMELA and Fermi-LAT are explained by decaying dark matter controlled by the T13 flavor symmetry.