School of Physics and Astronomy

Higgs to Diphoton measurements at CMS

11 October 2018

Time: 3:00 - 4:00pm
Speaker: Seth Zenz (Queen Mary)
Venue: G.0. Jones, room 410

The decay of the Higgs boson to two photons is a powerful channel for learning whether the Higgs boson is truly as predicted by the Standard Model (SM), or if there are new particles and interactions influencing its properties. Although the decay is quite rare, the excellent capabilities of the Compact Muon Solenoid (CMS) for measuring photon energies mean that background events contribution can be greatly reduced. As a result, the diphoton decay played a key role in the Higgs boson discovery in 2012, and continues to be central to measuring its mass and properties. This talk will give an overview the CMS measurements of this decay during Run 2, illustrating the steps from detector through analysis to extracting Higgs properties, and show how these measurements contribute to the broader LHC Higgs program. Slides: