Measurement of the Production Cross-Section of Z u+u- with ATLAS at the LHC at Vs=7 TeV.
dc.contributor.author | Purdham, John Charles | en_US |
dc.date.accessioned | 2012-01-26T20:02:49Z | |
dc.date.available | NO_RESTRICTION | en_US |
dc.date.available | 2012-01-26T20:02:49Z | |
dc.date.issued | 2011 | en_US |
dc.date.submitted | en_US | |
dc.identifier.uri | https://hdl.handle.net/2027.42/89702 | |
dc.description.abstract | This thesis presents measurements of the inclusive process pp->(Z->mu+mu-)+anything based on 40.2~pb^-1 of data from LHC collisions with center-of-mass energy of sqrt(s)=7 TeV as recorded by the ATLAS detector. For events with two isolated muons satisfying transverse momentum (p_T)_mu>20 GeV, pseudorapidity |(eta)_mu|<2.4, and dimuon invariant mass 60<M_mumu<120 GeV, the product of the fiducial Z production cross-section and branching ratio to muons was determined to be (sigma_Z)_fid X BR_mumu=0.455 +/- 0.017 nb, in agreement with a Standard Model prediction of 0.447 +/- 0.022 nb. Using Monte Carlo programs this result was extrapolated to yield a result for the total Z production cross-section, (sigma_Z)_tot X BR_mumu=0.943 +/- 0.041 nb. Normalized distributions for the transverse momentum and rapidity of Z/gamma^*->mu+mu- muon pairs were also measured and found to be in good agreement with theory modeled by the PYTHIA Monte Carlo program. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | Particle Physics | en_US |
dc.subject | Large Hadron Collider | en_US |
dc.subject | ATLAS | en_US |
dc.subject | Z Boson | en_US |
dc.subject | Muons | en_US |
dc.title | Measurement of the Production Cross-Section of Z u+u- with ATLAS at the LHC at Vs=7 TeV. | en_US |
dc.type | Thesis | en_US |
dc.description.thesisdegreename | PhD | en_US |
dc.description.thesisdegreediscipline | Physics | en_US |
dc.description.thesisdegreegrantor | University of Michigan, Horace H. Rackham School of Graduate Studies | en_US |
dc.contributor.committeemember | Thun, Rudolf P. | en_US |
dc.contributor.committeemember | Griess Jr., Robert L. | en_US |
dc.contributor.committeemember | Pierce, Aaron Thomas | en_US |
dc.contributor.committeemember | Zhou, Bing | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/89702/1/jpurdham_1.pdf | |
dc.owningcollname | Dissertations and Theses (Ph.D. and Master's) |
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