Higgs production in association with a Z Boson at the LHC

Wright, Michael (2014) Higgs production in association with a Z Boson at the LHC. PhD thesis, University of Glasgow.

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Abstract

The associated Z vector boson production rate of the Standard Model Higgs boson

has been measured in decays into two b quarks, with the Z boson decaying into an

electron or muon pair in the ATLAS detector at the Large Hadron Collider (LHC).

The associated Z vector boson production cross section in the Standard Model is

almost two orders of magnitude smaller than the dominant Higgs boson production

cross section from gluon fusion. Proton-proton collision data at a centre-of-mass

energy of 8 TeV delivered by the LHC with the ATLAS detector corresponding to

an integrated luminosity of 13 fb−1 has been analysed. A Higgs boson produced via

associated production with a Z vector boson is excluded with a 95% confidence level

in a mass range between 110 to 130 GeV at 6 to 11 times the Standard Model cross section, respectively.

Item Type: Thesis (PhD)
Qualification Level: Doctoral
Subjects: Q Science > QC Physics
Colleges/Schools: College of Science and Engineering > School of Physics and Astronomy
Supervisor's Name: Doyle, Professor Tony
Date of Award: 2014
Depositing User: Dr Michael Wright
Unique ID: glathesis:2014-5754
Copyright: Copyright of this thesis is held by the author.
Date Deposited: 11 Nov 2014 12:26
Last Modified: 11 Nov 2014 12:37
URI: http://theses.gla.ac.uk/id/eprint/5754

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