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| Release | : 2007 |
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| Total Pages | : 142 |
| Release | : 2007 |
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This dissertation describes a measurement of the shape of the boson transverse momentum distribution in p{bar p} 2!Z/[gamma]* 2!ee− + X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between 70
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| Total Pages | : 142 |
| Release | : 2007 |
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This dissertation describes a measurement of the shape of the boson transverse momentum distribution in p$ar{p}$ → Z/?* → e+e- + X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between 70 Msubee/sub 110 GeV/csup2/sup and uses 976 pb
| Author | : Klemens Müller |
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| Total Pages | : 0 |
| Release | : 2013 |
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| Author | : Eric Michael Flattum |
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| Total Pages | : 368 |
| Release | : 1996 |
| Genre | : Proton-antiproton interactions |
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| Total Pages | : 23 |
| Release | : 2015 |
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We present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy √s=8 TeV, corresponding to an integrated luminosity of 19.7 fb-1. The Z boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the fewz program. The results are also compared to the commonly used leading-order MadGraph and next-to-leading-order powheg generators.
| Author | : Brian L. Winer |
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| Total Pages | : 290 |
| Release | : 1991 |
| Genre | : Dissertations, Academic |
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| Release | : 2016 |
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The transverse momentum spectra of weak vector bosons are measured in the CMS experiment at the LHC. The measurement uses a sample of proton-proton collisions at sqrt(s) = 8 TeV, collected during a special low-luminosity running that corresponds to an integrated luminosity of 18.4 inverse-picobarns. The production of W bosons is studied in both electron and muon decay modes, while the production of Z bosons is studied using only the dimuon decay channel. The ratios of W- to W+ and Z to W differential cross sections are also measured. The measured differential cross sections and ratios are compared with theoretical predictions up to next-to-next leading order in QCD.
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| Total Pages | : 141 |
| Release | : 1991 |
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The Collider Detector at Fermilab (CDF) was used to measure the transverse momentum distribution of W boson produced in proton-antiproton collisions at the Tevatron collider. The W bosons were identified by the decay W 2!e[nu]. The results are in good agreement with a next-to-leading order calculation. The cross section for W production with P{sub T}> 50 GeV/c is 423 {plus minus} 58 (stat.) {plus minus} 108 (sys.) pb. 58 refs., 53 figs., 16 tabs.
| Author | : Zhi-Yu Jiang |
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| Total Pages | : 238 |
| Release | : 1995 |
| Genre | : Collisions (Nuclear physics) |
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