Spontaneous compactification effects, low-energy signature of quark-lepton unification, and small neutrino masses in SO(10)
Journal Article
·
· Phys. Rev. D; (United States)
Signatures of quark-lepton unification can be experimentally verified by rare-kaon-decay processes provided the SU(4)/sub C/-breaking scale M/sub C//similar to/10/sup 5/--10/sup 6/ GeV. With the single intermediate symmetry, SU(2)/sub L/ x U(1)/sub R/ x SU(4)/sub C/ in SO(10), we find, for the first time, that such a scale and small Majorana neutrino masses are allowed when gravity-induced corrections due to a five-dimensional operator, arising out of spontaneous compactification of extra dimensions, are included. For such lower values of M/sub C/, the predicted proton lifetime is large depending upon the value of sin/sup 2/theta/sub W/ in the range 0.22--0.24. For still larger values of M/sub C/, neutrino masses and proton lifetime decrease, and the latter saturates the Irvine-Michigan-Brookhaven limit when M/sub C//similar to/10/sup 11/--10/sup 12/ GeV.
- Research Organization:
- Physics Department, North-Eastern Hill University, Bijni Complex, Laitumkhrah, Shillong 793003, India
- OSTI ID:
- 6447539
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:7; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
COMPACTIFICATION
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
HADRONS
KALUZA-KLEIN THEORY
LEPTONS
LIE GROUPS
LIFETIME
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NUCLEONS
PARTICLE MODELS
POSTULATED PARTICLES
PROTONS
QUARKS
SO GROUPS
SO-10 GROUPS
SU GROUPS
SU-2 GROUPS
SU-4 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
COMPACTIFICATION
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
HADRONS
KALUZA-KLEIN THEORY
LEPTONS
LIE GROUPS
LIFETIME
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NUCLEONS
PARTICLE MODELS
POSTULATED PARTICLES
PROTONS
QUARKS
SO GROUPS
SO-10 GROUPS
SU GROUPS
SU-2 GROUPS
SU-4 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES