Mixed Axion/Axino Dark Matter in mSUGRA and Yukawa-unified SUSY

Journal Article · Wed Feb 10 04:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3327534· OSTI ID:21349500

Ann Summy, Heaya ^[1]

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1. Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019 (United States)

Axion/axino dark matter (DM) is explored in the minimal supergravity (mSUGRA) and Yukawa-unified supersymmetric grand-unified theory (SUSY GUT) models with surprising results. For this type of scenario, relic DM abundance has three components: i.) cold axions, ii.) warm axinos from neutralino decay, and iii.) cold or warm thermally produced axinos. Reheat temperatures T{sub R} exceeding 10{sup 6} GeV are required in order to solve the gravitino/Big Bang Nucleosynthesis (BBN) problem while also allowing for baryogensis via non-thermal leptogenesis. In order to attain high enough reheat temperatures, we also need high values of the Peccei-Quinn (PQ) breaking scale f{sub a} on the order 10{sup 11}-10{sup 12} GeV.

• OSTI ID: 21349500
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1200; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AXIONS
BOSONS
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GEV RANGE
GOLDSTONE BOSONS
GRAND UNIFIED THEORY
GRAVITATIONAL RADIATION
GRAVITONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATTER
NONLUMINOUS MATTER
NUCLEOSYNTHESIS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PRODUCTION
PEV RANGE
POSTULATED PARTICLES
QUANTUM FIELD THEORY
RADIATIONS
SPARTICLES
SUPERGRAVITY
SUPERSYMMETRY
SYMMETRY
SYNTHESIS
TEV RANGE
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES