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

Journal Article · Mon Mar 01 00:00:00 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, Vol. 81, Issue 5; Other Information: DOI: 10.1103/PhysRevD.81.055004; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

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