Report on: Light Higgs Boson, Light Dark Matter and Gamma Rays
by
Biplob Bhattacharjee(TIFR)
→
Asia/Kolkata
A-304 (Colaba Campus)
A-304
Colaba Campus
Description
Title: Light Higgs Boson, Light Dark Matter and Gamma Rays
Authors: Vernon Barger, Y. Gao, Mathew McCaskey, Gabe Shaughnessy
Abstract: 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.
