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Spontaneous CP violation in A4×SU(5) with constrained sequential dominance 2

Spontaneous CP violation in A4×SU(5) with constrained sequential dominance 2
Spontaneous CP violation in A4×SU(5) with constrained sequential dominance 2
We revisit a two right-handed neutrino model with two texture zeros, namely an indirect model based on A4 with the recently proposed new type of constrained sequential dominance (CSD2), involving vacuum alignments along the (0,1,?1)T and (1,0,2)T directions in flavor space, which are proportional to the neutrino Dirac mass matrix columns. In this paper we construct a renormalizable and unified indirect A4×SU(5) model along these lines and show that, with spontaneous CP violation and a suitable vacuum alignment of the phases, the charged lepton corrections lead to a reactor angle in good agreement with results from Daya Bay and RENO. The model predicts a right-angled unitarity triangle in the quark sector and a Dirac CP violating oscillation phase in the lepton sector of ??130°, while providing a good fit to all quark and lepton masses and mixing angles
1550-7998
96018
Antusch, Stefan
6a8c0380-78ea-4bcb-afad-4348d84eafba
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Spinrath, Martin
5d3865c2-f012-4f91-aec0-2eda6117e161
Antusch, Stefan
6a8c0380-78ea-4bcb-afad-4348d84eafba
King, Stephen F.
f8c616b7-0336-4046-a943-700af83a1538
Spinrath, Martin
5d3865c2-f012-4f91-aec0-2eda6117e161

Antusch, Stefan, King, Stephen F. and Spinrath, Martin (2013) Spontaneous CP violation in A4×SU(5) with constrained sequential dominance 2. Physical Review D, 87 (9), 96018. (doi:10.1103/PhysRevD.87.096018).

Record type: Article

Abstract

We revisit a two right-handed neutrino model with two texture zeros, namely an indirect model based on A4 with the recently proposed new type of constrained sequential dominance (CSD2), involving vacuum alignments along the (0,1,?1)T and (1,0,2)T directions in flavor space, which are proportional to the neutrino Dirac mass matrix columns. In this paper we construct a renormalizable and unified indirect A4×SU(5) model along these lines and show that, with spontaneous CP violation and a suitable vacuum alignment of the phases, the charged lepton corrections lead to a reactor angle in good agreement with results from Daya Bay and RENO. The model predicts a right-angled unitarity triangle in the quark sector and a Dirac CP violating oscillation phase in the lepton sector of ??130°, while providing a good fit to all quark and lepton masses and mixing angles

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Published date: 28 May 2013
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 369471
URI: http://eprints.soton.ac.uk/id/eprint/369471
ISSN: 1550-7998
PURE UUID: f800a071-2af1-4e02-8257-dbda6bfcd63b

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Date deposited: 26 Sep 2014 15:22
Last modified: 15 Jul 2019 21:42

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