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Book Measurement of the Inclusive Pp Z gamma e e Cross Section at Sqrt s

Download or read book Measurement of the Inclusive Pp Z gamma e e Cross Section at Sqrt s written by Sebastian Schmitt and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Measurement of the Inclusive Pp Z gamma e e Cross Section at s

Download or read book Measurement of the Inclusive Pp Z gamma e e Cross Section at s written by and published by . This book was released on 2013 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Measurement of the Inclusive W and Z Production Cross Sections in Pp Collisions at sqrt s

Download or read book Measurement of the Inclusive W and Z Production Cross Sections in Pp Collisions at sqrt s written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of inclusive W and Z production cross sections in pp collisions at sqrt(s)=7 TeV is presented. The electron and muon decay channels are analyzed in a data sample collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 inverse picobarns. The measured inclusive cross sections are sigma(pp-> WX) B(W-> l nu) = 10.30 +/- 0.02 (stat.) +/- 0.10 (syst.) +/- 0.10 (th.) +/- 0.41 (lumi.) nb and sigma(pp -> ZX) B(Z-> l+̂l-̂) = 0.974 +/- 0.007 (stat.) +/- 0.007 (syst.) +/- 0.018 (th.) +/- 0.039 (lumi.) nb, limited to the dilepton invariant mass range 60 to 120 GeV. The luminosity-independent cross section ratios are [sigma(pp->WX) B(W-> l nu)]/[sigma(pp-> ZX) B(Z->l+̂l-̂)] = 10.54 +/- 0.07 (stat.) +/- 0.08 (syst.) +/- 0.16 (th.) and [sigma(pp->W+̂X) B(W+̂ -> l+̂nu)] / [sigma(pp->W-̂ X) B(W-̂ -> l-̂ nu)] = 1.421 +/- 0.006 (stat.) +/- 0.014 (syst.) +/- 0.029 (th.). The measured values agree with next-to-next-to-leading order QCD cross section calculations based on recent parton distribution functions.

Book A Measurement of the Ratio of Inclusive Cross Sections sigma p bar p rightarrow Z b rm Jet sigma p bar p rightarrow Z rm Jet at sqrt s

Download or read book A Measurement of the Ratio of Inclusive Cross Sections sigma p bar p rightarrow Z b rm Jet sigma p bar p rightarrow Z rm Jet at sqrt s written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The ratio of the cross section for p{bar p} interactions producing a Z boson and at least one b quark jet to the inclusive Z+jet cross section is measured using 4.2 fb−1 of p{bar p} collisions collected with the D0 detector at the Fermilab Tevatron collider at √s = 1.96 TeV. The Z → l+l− candidate events with at least one b jet are discriminated from Z+ charm and light jet(s) events by a novel technique that exploits the properties of the tracks associated to the jet. The measured ratio is 0.0193 ± 0.0027 for events having a jet with transverse momentum p{sub T} > 20 GeV and pseudorapidity.

Book Z gamma Cross Section Measurement sigma BR Z gamma in the Electron Channel for p bar p Collisions at sqrt s

Download or read book Z gamma Cross Section Measurement sigma BR Z gamma in the Electron Channel for p bar p Collisions at sqrt s written by and published by . This book was released on 1994 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Z+[gamma] cross-section x branching ratio in the electron channel has been measured using the inclusive Z data sample from the CDF '88-'89 collider run, for which the total integrated luminosity was 4.05 ± 0.28 pb-1.

Book A Measurement of the Z Gamma Cross Section and Limits on Anomalous Triple Gauge Couplings at Square Root of S

Download or read book A Measurement of the Z Gamma Cross Section and Limits on Anomalous Triple Gauge Couplings at Square Root of S written by and published by . This book was released on 2012 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the properties of the Z$\gamma$ diboson system is presented using 5.0 fb$^{-1}$ of proton-proton collision data from the LHC using the CMS detector. The pp $\rightarrow Z(\rightarrow\mu \mu) \gamma$ and pp $\rightarrow Z(\rightarrow e e) \gamma$ production cross sections are measured within the fiducial volume of CMS with a combined measurement of $\sigma_{\ell\ell\gamma} = 5.33 \pm 0.08 ~\text{(stat.)} \pm 0.25 ~\text{(syst.)} \pm 0.12 ~\text{(lumi.)}$ pb that is in good agreement with Standard Model predictions. Upper limits on the neutral anomalous triple gauge couplings set are the most stringent limits on these couplings to date, with allowed regions: $-0.010

Book Measurement of the Inclusive Jet Cross Section in Pp Collisions at sqrt s

Download or read book Measurement of the Inclusive Jet Cross Section in Pp Collisions at sqrt s written by and published by . This book was released on 2016 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: The double-differential inclusive jet cross section is measured as a function of jet transverse momentum $p_{\mathrm {T}}$ and absolute rapidity $

Book Measurement of W gamma and Z gamma Cross Sections in the Muon Channel in square Root s

Download or read book Measurement of W gamma and Z gamma Cross Sections in the Muon Channel in square Root s written by Christopher B. Luchini and published by . This book was released on 1994 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Measurements of the mathrm Pp to W gamma gamma and mathrm Pp to Z gamma gamma Cross Sections and Limits on Anomalous Quartic Gauge Couplings at sqrt s

Download or read book Measurements of the mathrm Pp to W gamma gamma and mathrm Pp to Z gamma gamma Cross Sections and Limits on Anomalous Quartic Gauge Couplings at sqrt s written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements are presented of $ \mathrm{ W \gamma\gamma } $ and $ \mathrm{ Z \gamma\gamma } $ production in proton-proton collisions. Fiducial cross sections are reported based on a data sample corresponding to an integrated luminosity of 19.4 fb$^{-1}$ collected with the CMS detector at a center-of-mass energy of 8 TeV. Signal is identified through the $\mathrm{ W } \to \ell\nu$ and $\mathrm{ Z }\to\ell\ell$ decay modes, where $\ell$ is a muon or an electron. The production of $ \mathrm{ W \gamma\gamma } $ and $ \mathrm{ Z \gamma\gamma } $, measured with significances of 2.6 and 5.9 standard deviations, respectively, is consistent with standard model predictions. In addition, limits on anomalous quartic gauge couplings in $ \mathrm{ W \gamma\gamma } $ production are determined in the context of a dimension-8 effective field theory.

Book Measurement of Inclusive Jet Cross sections in Z gamma E E Jets Production in P Anti p Collisions at S 1 2

Download or read book Measurement of Inclusive Jet Cross sections in Z gamma E E Jets Production in P Anti p Collisions at S 1 2 written by and published by . This book was released on 2007 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inclusive jet cross sections in Z/[gamma]* events, with Z/[gamma]* decaying into an electron-positron pair, are measured as a function of jet transverse momentum and jet multiplicity in p{bar p} collisions at √s - 1.96 TeV with the upgraded Collider Detector at Fermilab in Run II, based on an integrated luminosity of 1.7 fb−1. The measurements cover the rapidity region