Enhanced diphoton Higgs decay rate and isospin symmetric Higgs boson
  The ATLAS and CMS experiments have recently discovered a new 125 GeV scalar boson. We show that the properties of this scalar, including the enhancement of its diphoton decay rate, can be explained in a model with an isospin symmetric Higgs boson. The predictions of the model relevant for future experiments are also discussed. 
Michio Hashimoto, V. A. Miransky
hep-ph hep-ex