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Higgs effect in SU(15) grand unified theory

Biswajoy Brahmachari and Utpal Sarkar

Robert B. Mann

Tom G. Steele

  • Theory Group, Physical Research Laboratory, Ahmedabad 380009, India

  • Physics Department, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1

  • Physics Department, University of Western Ontario, London, Ontario, Canada N6A 2E2

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Phys. Rev. D 45, 2467 – Published 1 April, 1992

DOI: https://doi.org/10.1103/PhysRevD.45.2467

Abstract

We analyze proton decay and the choice of Higgs fields in grand unified theories where the baryon number is a gauge symmetry [e.g., SU(15)]. Although Higgs effects forbid low-energy unification in the SU(15) model (within the extended survival hypothesis) as claimed by Frampton and Lee, other breaking patterns exist which allow unification at 109 GeV, as well as chiral color symmetry, quark-lepton ununified symmetry, and baryon-number symmetry breaking at the TeV scale, without any observable proton decay.

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Phys. Rev. D 45, 2467– Published 1 April, 1992
  • Received 11 October 1991

© 1992 American Physical Society

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