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

Journal Article · Wed Feb 10 00:00:00 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, Vol. 1200, Issue 1; Conference: SUSY09: 7. international conference on supersymmetry and the unification of fundamental interactions, Boston, MA (United States), 5-10 Jun 2008; Other Information: DOI: 10.1063/1.3327534; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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