Measurement Of The Transverse Momentum Distribution Of Z Bosons In Proton Proton Collisions At Sqrts
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Author | : Klemens Müller |
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Total Pages | : 0 |
Release | : 2013 |
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Download Measurement of the Transverse Momentum Distribution of Z Bosons in Proton-proton Collisions at Sqrt(s) Book in PDF, Epub and Kindle
Author | : Stephen Cole (Physicist) |
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Total Pages | : 189 |
Release | : 2015 |
Genre | : Collisions (Nuclear physics) |
ISBN | : 9781321814002 |
Download A Measurement of W+/-Z Production in Proton-proton Collisions at Sqrt(s) Book in PDF, Epub and Kindle
This dissertation presents measurements of W+/-Z production in ATLAS data collected in 2011 for pp collisions at a center-of-mass energy of 7 TeV and the combination of ATLAS and CMS data for the extraction of ZZ anomalous triple gauge coupling 95% confidence intervals. Confidence intervals for anomalous triple gauge boson couplings are derived using the transverse momentum distribution of Z bosons. These values agree well with the standard model expectation. The extraction of ZZ anomalous triple gauge coupling 95% confidence intervals used 4.6 fb-1 of 7 TeV data recorded by ATLAS and 5.0 fb-1 of 7 TeV data recorded by CMS. This is the first combined measurement of the ZZ anomalous triple gauge couplings between ATLAS and CMS. (Abstract shortened by UMI.).
Author | : Klemens Müller |
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Total Pages | : 105 |
Release | : 2013 |
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Download Measurement of the Transverse Momentum Distribution of Z Bosons in Proton-proton Collisions at √s Book in PDF, Epub and Kindle
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Release | : 2007 |
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Download Measurement of Z Boson Transverse Momentum in Proton-antiproton Collisions at Sqrt(s) Book in PDF, Epub and Kindle
Author | : Zhi-Yu Jiang |
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Total Pages | : 238 |
Release | : 1995 |
Genre | : Collisions (Nuclear physics) |
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Download Measurement of the Z Boson Transverse Momentum Distribution in Pp̄ Collisions at [square Root]s Book in PDF, Epub and Kindle
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Release | : 1999 |
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Download Measurement of the Transverse Momentum Distributions of W and Z Bosons Produced in P{bar P} Collisions at (square Root)s Book in PDF, Epub and Kindle
We present measurements of the transverse momentum distribution of W and Z bosons produced in p{bar p} collisions at (square root)s = 1.8 TeV. The data were collected with the DO detector at Fermilab during 1994-1996 Tevatron run. The results are in good agreement with theoretical predictions based on the perturbative QCD and soft gluon resummation combined calculation over the entire measured p{sub T} range (p{sub T} = 0--200 GeV/c).
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Total Pages | : 142 |
Release | : 2007 |
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Download Measurement of Z Boson Transverse Momentum in Proton - Anti-proton Collisions at S**1/2 Book in PDF, Epub and Kindle
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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Release | : 2016 |
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Download Measurement of the Transverse Momentum Spectra of Weak Vector Bosons Produced in Proton-proton Collisions at $\sqrt{s}$ Book in PDF, Epub and Kindle
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 | : 264 |
Release | : 2011 |
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Download A Measurement of the Z Boson Transverse Momentum Distribution, and of the ZZ and WZ Production Cross Sections Using 7.3-8.6 Fb$^{-1}$ of $p\bar{p}$ Collisions at $\sqrt{s}$ Book in PDF, Epub and Kindle
Two analyses are performed with the large samples of dielectron and dimuon events collected by the D0 experiment at the Fermilab Tevatron $p\bar{p}$ collider. The dilepton transverse momentum ($p_T$) distribution in $Z/\gamma^* → \ell^+\ell^-$ production is a powerful probe of Quantum chromodynamics. Until now, this distribution has been measured with limited precision. An alternative variable, $\phi^*_\eta$, is proposed due to its relatively low susceptibility to detector effects. The $\phi^*_\eta$, distribution of events with $Z/\gamma^* → \ell^+\ell^-$ invariant masses between 70 and 110 GeV, is measured in three bins of dilepton rapidity. This measurement, with 7.3 fb$^{-1}$ of data, is significantly more precise than previous measurements of the $p_T$ distribution. A state-of-the-art QCD Monte Carlo program is in modest agreement with the data. Using 8.6 fb$^{-1}$ of data, the $ZZ/\gamma^* → \nu\bar{\nu}\ell^+\ell^-$ and $WZ/\gamma^* → \ell\nu\ell^+\ell^-$ processes are studied, yielding production cross sections of, $\sigma(p\bar{p} \rightarrow ZZ/\gamma^*)$ = 1.64 $\pm$ 0.46 p b and $\sigma(p\bar{p} \rightarrow WZ/\gamma^*)$ = 4.46 $\pm$ 0.64 pb, for $Z/\gamma^* → \ell^+\ell^-$ invariant masses between 60 and 130 GeV. These are in agreement with Standard Model predictions.
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Total Pages | : 23 |
Release | : 2015 |
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Download Measurement of the Z Boson Differential Cross Section in Transverse Momentum and Rapidity in Proton-proton Collisions at 8 TeV. Book in PDF, Epub and Kindle
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.