Abstract: Assuming three generations of Majorana neutrinos, we study the different mixing patterns that arise from the non-trivial breaking of the flavor group A<inf>5</inf> and CP to the residual symmetries Z<inf>3</inf>, Z<inf>5</inf> or Z<inf>2</inf> × Z<inf>2</inf> in the charged lepton and to Z<inf>2</inf> × CP in the neutrino sector. All patterns contain only one free parameter θ and thus mixing angles as well as the Dirac and the two Majorana phases are strongly correlated. We perform an analytical and a numerical study of all possible mixing patterns. It turns out that only four patterns can describe the experimentally measured values of the mixing angles for a particular choice of θ well. All of them predict trivial Majorana phases, while the Dirac phase δ is maximal for two patterns and trivial for the two remaining ones. If δ is maximal, also the atmospheric mixing angle is fixed to be maximal.
Di Iura, A., Hagedorn, C., & Meloni, D. (2015). Lepton mixing from the interplay of the alternating group A<inf>5</inf> and CP. JOURNAL OF HIGH ENERGY PHYSICS, 2015(8) [10.1007/JHEP08(2015)037].
Titolo: | Lepton mixing from the interplay of the alternating group A<inf>5</inf> and CP | |
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Data di pubblicazione: | 2015 | |
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Citazione: | Di Iura, A., Hagedorn, C., & Meloni, D. (2015). Lepton mixing from the interplay of the alternating group A<inf>5</inf> and CP. JOURNAL OF HIGH ENERGY PHYSICS, 2015(8) [10.1007/JHEP08(2015)037]. | |
Handle: | http://hdl.handle.net/11590/298455 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |