Neutrino masses in a 5D SU(3)W TeV unification model

Chia Hung V. Chang*, We Fu Chang, J. N. Ng

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

15 引文 斯高帕斯(Scopus)

摘要

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

原文英語
頁(從 - 到)92-102
頁數11
期刊Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
558
發行號1-2
DOIs
出版狀態已發佈 - 2003 四月 10

ASJC Scopus subject areas

  • 核能與高能物理

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