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Open Access Publications from the University of California

Observation of Higgs boson production in association with a top quark-antiquark pair in the diphoton decay channel

• Author(s): May, Samuel James
• Advisor(s): Yagil, Avraham
• Wuerthwein, Frank
• et al.
Abstract

This dissertation presents the first observation of Higgs boson production in association with a top quark-antiquark pair in the diphoton decay channel, with a significance of 6.6 standard deviations. The measurement is performed with a dataset of 13 TeV proton-proton collisions recorded by the Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC), corresponding to an integrated luminosity of 137 \fbinv.

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