Gauge mediation in supergravity and gravitino dark matter

Journal Article · Thu Mar 01 00:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.055003· OSTI ID:21020088

Ibe, Masahiro; Kitano, Ryuichiro ^[1]

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1. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States) and Physics Department, Stanford University, Stanford, California 94305 (United States)

Gravitinos and hidden sector fields often cause a cosmological disaster in supersymmetric models. We find that a model with gravitational gauge mediation solves such a problem quite naturally. The {mu}-problem is also absent in the model. Moreover, the abundance of gravitinos explains correct amount of dark matter of the universe. The dark matter abundance can be calculated without detailed information on the thermal history of the universe such as the reheating temperature after inflation.

• OSTI ID: 21020088
• Journal Information: Physical Review. D, Particles Fields, Vol. 75, Issue 5; Other Information: DOI: 10.1103/PhysRevD.75.055003; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGY
GRAVITONS
INFLATIONARY UNIVERSE
NONLUMINOUS MATTER
SPARTICLES
SUPERGRAVITY
SUPERSYMMETRY
UNIVERSE