Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-08-10
Phys.Rev.D82:095011,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
19 pages, 7 figures, 1 table
Scientific paper
10.1103/PhysRevD.82.095011
A light Higgs boson is preferred by $M_W$ and $m_t$ 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, $AA\rightarrow b\bar{b}, c\bar{c}, \tau^+\tau^-$, 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.
Barger Vernon
Gao Yanfang
McCaskey Mathew
Shaughnessy Gabe
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