TY - JOUR
T1 - Neutrino masses in a 5D SU(3)W TeV unification model
AU - Chang, Chia Hung V.
AU - Chang, We Fu
AU - Ng, J. N.
N1 - Funding Information:
This work is partially supported by the Natural Science and Engineering Council of Canada and the National Science Council of Taiwan, ROC (Grant No. 91-2112-M-003-011). C.H.C. would like to thank Darwin Chang, C.Q. Geng and K. Cheung for insightful discussions. C.H.C. is grateful for the hospitality and support of the theory group of TRIUMF, where most of the work was done.
PY - 2003/4/10
Y1 - 2003/4/10
N2 - We study the generation of neutrino masses in the SU(3)W electroweak unified theory in M4 x S1/(Z2 x Z2′) spacetime. By appropriate orbifolding, the bulk symmetry SU(3)W is broken into SU(2)L x U(1)Y at one of the fixed points, where the quarks reside. The leptons form SU(3)W triplets, localized at the other symmetric fixed point. The fermion masses arise from the bulk Higgs sector containing a triplet and an anti-sextet. We construct neutrino Majorana masses via 1-loop quantum corrections by adding a parity odd bulk triplet scalar. No right-handed neutrino is needed. The neutrino mass matrix is of the inverted hierarchy type. We show that the model can easily accommodate the bi-large mixing angle solution favored by the recent neutrino experiments without much fine tuning of parameters. The constraints from μ → 3e transition and neutrinoless double β decays are discussed. Crown copyright
AB - We study the generation of neutrino masses in the SU(3)W electroweak unified theory in M4 x S1/(Z2 x Z2′) spacetime. By appropriate orbifolding, the bulk symmetry SU(3)W is broken into SU(2)L x U(1)Y at one of the fixed points, where the quarks reside. The leptons form SU(3)W triplets, localized at the other symmetric fixed point. The fermion masses arise from the bulk Higgs sector containing a triplet and an anti-sextet. We construct neutrino Majorana masses via 1-loop quantum corrections by adding a parity odd bulk triplet scalar. No right-handed neutrino is needed. The neutrino mass matrix is of the inverted hierarchy type. We show that the model can easily accommodate the bi-large mixing angle solution favored by the recent neutrino experiments without much fine tuning of parameters. The constraints from μ → 3e transition and neutrinoless double β decays are discussed. Crown copyright
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U2 - 10.1016/S0370-2693(03)00219-3
DO - 10.1016/S0370-2693(03)00219-3
M3 - Article
AN - SCOPUS:1642303487
SN - 0370-2693
VL - 558
SP - 92
EP - 102
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-2
ER -