Light Higgs boson, light dark matter, and gamma rays

Journal Article · Mon Nov 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.095011· OSTI ID:21503827

Barger, Vernon; Yu, Gao; McCaskey, Mathew ^[1]; Shaughnessy, Gabe ^[2]

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1. Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)
2. Northwestern University, Department of Physics and Astronomy, Evanston, Illinois 60208 (United States)

A light Higgs boson is preferred by M{sub W} and m{sub t} measurements. A complex scalar singlet addition to the standard model allows a better fit to these measurements through a new light singlet dominated state. It then predicts a light dark matter (DM) particle that can explain the signals of DM scattering from nuclei in the CoGeNT and DAMA/LIBRA experiments. Annihilations of this DM in the galactic halo, AA{yields}bb, cc, {tau}{sup +}{tau}{sup -}, lead to gamma rays that naturally improve a fit to the Fermi Large Area Telescope data in the central galactic regions. The associated light neutral Higgs boson may also be discovered at the Large Hadron Collider.

• OSTI ID: 21503827
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 9; Other Information: DOI: 10.1103/PhysRevD.82.095011; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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CERN LHC
COSMIC PHOTONS
COSMIC RAY DETECTION
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GAMMA RADIATION
HIGGS BOSONS
NONLUMINOUS MATTER
NUCLEI
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STANDARD MODEL
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CYCLIC ACCELERATORS
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ELEMENTARY PARTICLES
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MATTER
PARTICLE INTERACTIONS
PARTICLE MODELS
PHOTONS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
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RADIATIONS
STORAGE RINGS
SYNCHROTRONS
UNIFIED GAUGE MODELS