Dilaton-Assisted Dark Matter

Journal Article · Thu Dec 31 00:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.261803· OSTI ID:21370925

Yang, Bai; Lykken, Joseph ^[1]; Carena, Marcela ^[1]

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1. Theoretical Physics Department, Fermilab, Batavia, Illinois 60510 (United States)

A dilaton could be the dominant messenger between standard model fields and dark matter. The measured dark matter relic abundance relates the dark matter mass and spin to the conformal breaking scale. The dark matter-nucleon spin-independent cross section is predicted in terms of the dilaton mass. We compute the current constraints on the dilaton from LEP and Tevatron experiments, and the gamma-ray signal from dark matter annihilation to dilatons that could be observed by Fermi Large Area Telescope.

• OSTI ID: 21370925
• Journal Information: Physical Review Letters, Vol. 103, Issue 26; Other Information: DOI: 10.1103/PhysRevLett.103.261803; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

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COSMOLOGY AND ASTRONOMY
ABUNDANCE
ANNIHILATION
CROSS SECTIONS
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GAMMA RADIATION
LEP STORAGE RINGS
MASS
NONLUMINOUS MATTER
NUCLEONS
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ELEMENTARY PARTICLES
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MATHEMATICAL MODELS
MATTER
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PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
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UNIFIED GAUGE MODELS