Grand unified theories with dimension-5 interactions: Gauge unification and intermediate scales

Journal Article · Mon Mar 01 04:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.055004· OSTI ID:21409881

Chakrabortty, Joydeep ^[1]; Raychaudhuri, Amitava ^[1]

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1. Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211 019 (India)

Dimension-5 corrections to the gauge kinetic term of grand unified theories may capture effects of quantum gravity or string compactification. Such operators modify the usual gauge coupling unification prediction in a calculable manner. Here we examine SU(5), SO(10), and E(6) grand unified theories in the light of all such permitted operators and calculate the impact on the intermediate scales and the unification program. We show that in many cases at least one intermediate scale can be lowered to even 1-10 TeV, where a neutral Z{sup '} and possibly other states are expected.

• OSTI ID: 21409881
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPACTIFICATION
COMPOSITE MODELS
CORRECTIONS
COUPLING
ENERGY RANGE
EXTENDED PARTICLE MODEL
FIELD THEORIES
FORECASTING
GRAND UNIFIED THEORY
INTERACTIONS
LIE GROUPS
MATHEMATICAL MODELS
PARTICLE MODELS
QUANTUM FIELD THEORY
QUANTUM GRAVITY
QUARK MODEL
SO GROUPS
SO-10 GROUPS
STRING MODELS
SU GROUPS
SU-5 GROUPS
SYMMETRY GROUPS
TEV RANGE
TEV RANGE 01-10
UNIFIED GAUGE MODELS