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Phys. Rev. D 73, 035004 (2006) [11 pages]

SU(3)C[direct-product]SU(3)L[direct-product]U(1)X model with two Higgs triplets

P. V. Dong, H. N. Long, and D. T. Nhung
Institute of Physics, VAST, P.O. Box 429, Bo Ho, Hanoi 10000, Vietnam

D. V. Soa
Department of Physics, Hanoi University of Education, Hanoi, Vietnam
Received 9 January 2006; published 8 February 2006

The SU(3)C[direct-product]SU(3)L[direct-product]U(1)X gauge model with the minimal scalar sector (two Higgs triplets) is studied in detail. One of the vacuum expectation values u is a source of lepton-number violations and a reason for the mixing among the charged gauge bosons—the standard model W and the bilepton (with L=2) gauge bosons as well as among neutral non-Hermitian X0 and neutral gauge bosons: the photon, the Z, and the new Z[prime]. Because of these mixings, the lepton-number violating interactions exist in both charged and neutral gauge boson sectors. An exact diagonalization of the neutral gauge boson sector is derived and bilepton mass splitting is also given. The lepton-number violation happens only in the neutrino but not in the charged lepton sector. In this model, lepton-number changing (DeltaL=±2) processes exist but only in the neutrino sector. Constraints on vacuum expectation values of the model are estimated and u~=O(1) GeV, v~=vweak=246 GeV, and omega~=O(1) TeV.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.73.035004
DOI: 10.1103/PhysRevD.73.035004
PACS: 12.60.Cn; 12.10.Dm; 12.15.Mm; 12.60.Fr
  • 12.60.Cn
    Extensions of electroweak gauge sector
  • 12.10.Dm
    Unified theories and models of strong and electroweak interactions
  • 12.15.Mm
    Neutral currents
  • 12.60.Fr
    Extensions of electroweak Higgs sector
  • YEAR: 2006
KEYWORDS: standard model, SU(3) theory, unitary symmetry, vacuum (elementary particles), conservation laws, gauge field theory

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