Scale Invariant Extension of the Standard Model with a Strongly Interacting Hidden Sector

Journal Article · Fri Apr 08 04:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.141802· OSTI ID:21550276

Hur, Taeil; Ko, P ^[1]

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1. School of Physics, KIAS, Seoul 130-722 (Korea, Republic of)

We present a scale invariant extension of the standard model with a new QCD-like strong interaction in the hidden sector. A scale {Lambda}{sub H} is dynamically generated in the hidden sector by dimensional transmutation, and chiral symmetry breaking occurs in the hidden sector. This scale is transmitted to the SM sector by a real singlet scalar messenger S and can trigger electroweak symmetry breaking. Thus all the mass scales in this model arise from the hidden sector scale {Lambda}{sub H}, which has quantum mechanical origin. Furthermore, the lightest hadrons in the hidden sector are stable by the flavor conservation of the hidden sector strong interaction, and could be the cold dark matter (CDM). We study collider phenomenology, relic density, and direct detection rates of the CDM of this model.

• OSTI ID: 21550276
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 106; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BASIC INTERACTIONS
CHIRAL SYMMETRY
COMPOSITE MODELS
DENSITY
ELEMENTARY PARTICLES
FIELD THEORIES
FLAVOR MODEL
GRAND UNIFIED THEORY
HADRONS
INTERACTIONS
MASS
MATHEMATICAL MODELS
MATTER
MECHANICS
NONLUMINOUS MATTER
PARTICLE MODELS
PHYSICAL PROPERTIES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM MECHANICS
QUARK MODEL
STANDARD MODEL
STRONG INTERACTIONS
SYMMETRY
SYMMETRY BREAKING
UNIFIED GAUGE MODELS