### Abstract

We study the generation of neutrino masses in the SU(3)_{W} electroweak unified theory in M_{4} x S_{1}/(Z_{2} x Z_{2}′) 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

Original language | English |
---|---|

Pages (from-to) | 92-102 |

Number of pages | 11 |

Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |

Volume | 558 |

Issue number | 1-2 |

DOIs | |

Publication status | Published - 2003 Apr 10 |

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### ASJC Scopus subject areas

- Nuclear and High Energy Physics

### Cite this

_{W}TeV unification model.

*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*,

*558*(1-2), 92-102. https://doi.org/10.1016/S0370-2693(03)00219-3

**Neutrino masses in a 5D SU(3) _{W} TeV unification model.** / Chang, Chia Hung V.; Chang, We Fu; Ng, J. N.

Research output: Contribution to journal › Article

_{W}TeV unification model',

*Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics*, vol. 558, no. 1-2, pp. 92-102. https://doi.org/10.1016/S0370-2693(03)00219-3

_{W}TeV unification model. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2003 Apr 10;558(1-2):92-102. https://doi.org/10.1016/S0370-2693(03)00219-3

}

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.

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

UR - http://www.scopus.com/inward/record.url?scp=1642303487&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1642303487&partnerID=8YFLogxK

U2 - 10.1016/S0370-2693(03)00219-3

DO - 10.1016/S0370-2693(03)00219-3

M3 - Article

AN - SCOPUS:1642303487

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

SN - 0370-2693

IS - 1-2

ER -