Hierarchy of symmetry-breaking scales in SO(10) grand unification and particle masses

Journal Article · Wed Apr 01 04:00:00 EST 1987 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6116229

Asatryan, G M; Ioannisyan, A N

An SO(10) grand unification model is proposed in which the introduction of an additional discrete symmetry solves the problem of the quark mass spectrum arising in SO(10) breaking schemes with intermediate SU(4) x SU(2)/sub L/ x SU(2)/sub R/ or SU(3)/sub C/ x U(1)/sub B//sub -//sub L/ x SU(2)/sub L/ x SU(2)/sub R/ symmetry. When the breaking of this discrete symmetry is taken into account the condition that there exist only a single light Higgs boson leads to a relation between the b- and t-quark masses which makes it possible to fix the ratio of the grand unification scale M/sub X/ and the quark--lepton symmetry-breaking scale M/sub C/. The specific values of M/sub X/ and M/sub C/ and also the scale of the SU(2)/sub R/ symmetry breaking M/sub R/ depend on the experimental value of the Weinberg angle and are in agreement with the experimental data on proton decay.

• Research Organization: Erevan Physics Institute
• OSTI ID: 6116229
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 45:4; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645201* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELEMENTARY PARTICLES
FIELD THEORIES
GRAND UNIFIED THEORY
HIGGS BOSONS
LIE GROUPS
MASS FORMULAE
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
QUARKS
SO GROUPS
SO-10 GROUPS
SU GROUPS
SU-2 GROUPS
SU-3 GROUPS
SU-4 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
WEINBERG ANGLE