Z Boson Transverse Momentum Distribution And Zz And Wz Production

Author : Mika Vesterinen
Publisher : Springer Science & Business Media
ISBN 13 : 3642307884
Total Pages : 226 pages
Book Rating : 4.81/5 ( download)

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Download or read book Z Boson Transverse Momentum Distribution, and ZZ and WZ Production written by Mika Vesterinen and published by Springer Science & Business Media. This book was released on 2012-06-30 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work develops novel data analysis techniques enabling aspects of the Standard Model of particle physics to be tested with unprecedented precision using data from the DZero experiment at the high energy “Tevatron” proton-antiproton collider at Fermilab, Chicago. Vesterinen's measurements of the transverse momentum of Z bosons using the novel variable φ* have exposed deficiencies in the current state-of-the-art theoretical predictions for vector boson production at hadron colliders. These techniques are now being used in the experiments at CERN’s Large Hadron Collider (LHC) and have stimulated considerable interest in the theoretical particle physics community. Furthermore, Vesterinen's measurements of the cross sections for the production of pairs of vector bosons (WZ and ZZ) are to date the most precise ever made.

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ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.32/5 ( download)

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Download or read book 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 $\sqrt{s}$ written by and published by . This book was released on 2011 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author : Mika Vesterinen
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.45/5 ( download)

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Download or read book 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 pp̄ collisions at √s written by Mika Vesterinen and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Mika Vesterinen
Publisher :
ISBN 13 :
Total Pages : 264 pages
Book Rating : 4.66/5 ( download)

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Download or read book 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 $sqrt{s}$ written by Mika Vesterinen and published by . This book was released on 2011 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Johnny Shing Tung Ng
Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.31/5 ( download)

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Download or read book Measurement of the Z Boson Transverse Momentum Distribution at the Tevatron written by Johnny Shing Tung Ng and published by . This book was released on 1991 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.64/5 ( download)

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Download or read book Measurement of the Z Boson Differential Cross Section in Transverse Momentum and Rapidity in Proton-proton Collisions at 8 TeV. written by and published by . This book was released on 2015 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : John Campbell
Publisher : Oxford University Press
ISBN 13 : 0199652740
Total Pages : 760 pages
Book Rating : 4.47/5 ( download)

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Download or read book The Black Book of Quantum Chromodynamics written by John Campbell and published by Oxford University Press. This book was released on 2018 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title provides an in-depth introduction to the particle physics of current and future experiments at particle accelerators. The text provides the reader with an overview of practically all aspects of the strong interaction necessary to understand and appreciate modern particle phenomenology at the energy frontier.

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ISBN 13 :
Total Pages : pages
Book Rating : 4.53/5 ( download)

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Download or read book Production of W and Z Bosons at the Tevatron written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present recent results on measurements of the transverse momentum distribution of W and Z bosons, the angular distribution of electrons from W decays, and on color coherence effects in W+jets events from p{bar p} collisions at (square root)s = 1.8 TeV at the Fermilab Tevatron Collider. The data are compared to perturbative QCD calculations.

Author : Timothy L. Barklow
Publisher : World Scientific
ISBN 13 : 9810226314
Total Pages : 749 pages
Book Rating : 4.12/5 ( download)

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Download or read book Electroweak Symmetry Breaking and New Physics at the TeV Scale written by Timothy L. Barklow and published by World Scientific. This book was released on 1996 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an expanded version of the report by the Electroweak Symmetry Breaking and Beyond the Standard Model Working Group which was contributed to Particle Physics ? Perspectives and Opportunities, a report of the Division of Particles and Fields Committee for Long Term Planning. One of the Working Group's primary goals was to study the phenomenology of electroweak symmetry breaking and attempt to quantify the ?physics reach? of present and future colliders. Their investigations encompassed the Standard Model ? with one doublet of Higgs scalars ? and approaches to physics beyond the Standard Model. These include models of low-energy supersymmetry, dynamical electroweak symmetry breaking, and a variety of extensions of the Standard Model with new particles and interactions. The Working Group also considered signals of new physics in precision measurements arising from virtual processes and examined experimental issues associated with the study of electroweak symmetry breaking and the search for new physics at present and future hadron and lepton colliders.This volume represents an important contribution to the efforts being made to advance the frontiers of particle physics.

Author : Arnulf Quadt
Publisher : Springer Science & Business Media
ISBN 13 : 3540710604
Total Pages : 166 pages
Book Rating : 4.08/5 ( download)

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Download or read book Top Quark Physics at Hadron Colliders written by Arnulf Quadt and published by Springer Science & Business Media. This book was released on 2007-08-16 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This will be a required acquisition text for academic libraries. More than ten years after its discovery, still relatively little is known about the top quark, the heaviest known elementary particle. This extensive survey summarizes and reviews top-quark physics based on the precision measurements at the Fermilab Tevatron Collider, as well as examining in detail the sensitivity of these experiments to new physics. Finally, the author provides an overview of top quark physics at the Large Hadron Collider.