Nonthermal 'WIMP miracle'

Journal Article · Thu Oct 15 00:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.083529· OSTI ID:21325339

Acharya, Bobby Samir; Kane, Gordon; Watson, Scott; Kumar, Piyush ^[1]

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1. Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, Trieste (Italy) and INFN, Sezione di Trieste (Italy)

Light scalar fields with only gravitational strength couplings are typically present in UV complete theories of physics beyond the standard model. In the early universe it is natural for these fields to dominate the energy density, and their subsequent decay - if prior to big bang nucleosynthesis - will typically yield some dark matter particles in their decay products. In this paper we make the observation that a Nonthermal 'WIMP Miracle' may result: that is, in the simplest solution to the cosmological moduli problem, nonthermally produced WIMPs can naturally account for the observed dark matter relic density.

• OSTI ID: 21325339
• Journal Information: Physical Review. D, Particles Fields, Vol. 80, Issue 8; Other Information: DOI: 10.1103/PhysRevD.80.083529; (c) 2009 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
COUPLING
DENSITY
ENERGY DENSITY
MATHEMATICAL SOLUTIONS
NONLUMINOUS MATTER
NUCLEOSYNTHESIS
PARTICLE DECAY
SCALAR FIELDS
STANDARD MODEL
UNIVERSE