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Title: Measurements of Higgs boson properties using the diphoton decay channel with the Compact Muon Solenoid experiment
Author: Scott, Edward John Titman
ISNI:       0000 0004 8499 5681
Awarding Body: Imperial College London
Current Institution: Imperial College London
Date of Award: 2019
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Measurements of Higgs boson production cross sections with the Higgs boson decaying into a pair of photons are reported. Events with two photons are selected from a sample of proton-proton collisions at a centre-of-mass energy of 13 TeV collected by the Compact Muon Solenoid detector at the Large Hadron Collider in 2016 and 2017, corresponding to a total integrated luminosity of 77.4/fb. Cross sections for gluon fusion and vector boson fusion production, relative to the corresponding standard model predictions, are measured to be 1.15 ± 0.15 and 0.83 +0.37 −0.31 respectively. These two production modes are further measured in kinematic regions within the simplified template cross section framework. All results are found to be in agreement with the standard model expectations.
Supervisor: Zenz, Seth ; Davies, Gavin Sponsor: Science and Technology Facilities Council
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral