Dalitz Decay $H\to\,f\bar{f}γ$ as a Background for $H\toγ\,γ$
arXiv:1402.5317 · doi:10.1103/PhysRevD.89.093013
Abstract
The Dalitz decay $H\to\,f\bar{f}γ$ is calculated for very small $f\bar{f}$ invariant masses where the $f\bar{f}$ pair could be mistaken for a photon in analysis of $H\toγγ$ decays. Using the ATLAS cuts and the full Dalitz decay amplitude, we estimate this fraction to be 7.06%.
3 pages, 1 figure, 2 tables