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Measurement of the Higgs Boson Properties at \sqrt s = 13 TeV With CMS in the \gamma \gamma Decay Channel
- Olmedo, Manuel Alejandro
- Advisor(s): Hanson, Gail
Abstract
The decay of the Higgs boson to two photons is one of the major analysis channels for Higgs physics studied at the LHC. Together with the four-lepton decay channel, it provided the most statistically robust signal leading to the Higgs discovery in 2012. Although the particle has been extensively studied at 7 TeV and 8 TeV, research into higher collision energies (13 TeV) is necessary for further characterization. The two-photon collaboration in CMS has developed analysis tools to investigate these high-energy collision events. Important results
are a measured signal strength of σobs/σtheoretical = 1.16+0.11−0.10 and a measured mass of mH=125.09 GeV with 9.3σ significance.