Right unitarity triangles and tri-bimaximal mixing from discrete symmetries and unification
Right unitarity triangles and tri-bimaximal mixing from discrete symmetries and unification
复制标题
离散对称性和统一的直角酉三角形和三双极大混合
DOI:
10.1016/j.nuclphysb.2011.05.005
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发表时间:
2011
影响因子:
2.8
通讯作者:
Antusch S
中科院分区:
文献类型:
--
作者:
Antusch S
We propose new classes of models which predict both tri-bimaximal lepton mixing and a right-angled Cabibbo–Kobayashi–Maskawa (CKM) unitarity triangle, α≈ 90°. The ingredients of the models include a supersymmetric (SUSY) unified gauge group such as SU (5), a discrete family symmetry such as A 4 or S 4, a shaping symmetry including products of Z 2 and Z 4 groups as well as spontaneous CP violation. We show how the vacuum alignment in such models allows a simple explanation of α≈ 90° by a combination of purely real or purely imaginary vacuum expectation values (vevs) of the flavons responsible for family symmetry breaking. This leads to quark mass matrices with 1–3 texture zeros that satisfy the “phase sum rule” and lepton mass matrices that satisfy the “lepton mixing sum rule” together with a new prediction that the leptonic CP violating oscillation phase is close to either 0°, 90°, 180°, or 270° depending on the model, with neutrino masses being purely real (no complex Majorana phases). This leads to the possibility of having right-angled unitarity triangles in both the quark and lepton sectors.
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DOI:
10.1016/j.nuclphysb.2009.05.020
发表时间:
2009
期刊:
Nuclear Physics
影响因子:
--
作者:
S. King;C. Luhn
通讯作者:
C. Luhn
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
U. Rohde;D. Sonne;M. Christensen;M. Hansen;A. Brønden;Signe Toräng;J. Rehfeld;J. Holst;T. Vilsbøll;F. Knop
通讯作者:
F. Knop
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
S. Antusch;S. King
通讯作者:
S. King
影响因子:
5.4
作者:
Antusch S
通讯作者:
Antusch S
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
P. Harrison;D. Roythorne;W. Scott
通讯作者:
W. Scott