Use this URL to cite or link to this record in EThOS:
Title: Observation of a new particle in the search for the Standard Model Higgs boson at the CMS detector
Author: Wardle, Nicholas
ISNI:       0000 0004 2752 7363
Awarding Body: Imperial College London
Current Institution: Imperial College London
Date of Award: 2013
Availability of Full Text:
Access from EThOS:
Access from Institution:
The discovery of the Standard Model (SM) Higgs boson is one of the primary physics objectives of the Large Hadron Collider at CERN. This thesis describes a search carried out for the SM Higgs boson on data collected during the 2011 and 2012 proton-proton (pp) collision runs with the CMS detector corresponding to integrated luminosities of 5:1fb-1 and 5:3fb-1 respectively. A detailed description of the search for the SM Higgs boson decaying to two photons from the full dataset collected at CMS during the 2011 pp collision run is provided. In particular, the development of signal and background modelling techniques used for statistical interpretations of the data are highlighted. Results of the search using these techniques from the 2011 dataset are presented. In addition, an update to the analysis including data taken during 2012 is described and the results from the combined 2011 and 2012 analyses given. Results from the combination of several Higgs decay channels at CMS are reported, including those presented in the International Conference on High Energy Physics in July 2012 at which the announcement of discovery was made. Ongoing studies to ascertain the properties of the new particle are discussed and preliminary results from the combined 7 and 8 TeV datasets (corresponding to 5:1fb-1 and 12:2fb-1 respectively) are presented.
Supervisor: Hays, Jonathan ; Davies, Gavin Sponsor: Science and Technology Facilities Council
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral