Delta(54) flavor phenomenology and strings

作者：Carballo Perez Brenda^*; Peinado Eduardo; Ramos Sanchez Saul

来源：The Journal of High Energy Physics, 2016, 2016(12): 131.

DOI：10.1007/JHEP12(2016)131

• Compactification and String Models
• Discrete Symmetries
• Neutrino Physics

Delta(54) can serve as a flavor symmetry in particle physics, but remains almost unexplored. We show that in a classification of semi-realistic Z(3) x Z(3) heterotic string orbifolds, Delta(54) turns out to be the most natural flavor symmetry, providing additional motivation for its study. We revisit its phenomenological potential from a low-energy perspective and subject to the constraints of string models. We find a model with Delta(54) arising from heterotic orbifolds that leads to the Gatto-Sartori-Tonin relation for quarks and charged-leptons. Additionally, in the neutrino sector, it leads to a normal hierarchy for neutrino masses and a correlation between the reactor and the atmospheric mixing angles, the latter taking values in the second octant and being compatible at three sigmas with experimental data.

• 出版日期2016-12-23