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Measurement Of W Boson Production In Pp Collisions At 502 Tev And Optimisation Of Electron Identification In Pb Pb Collisions With The Atlas Detector
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Book Synopsis Measurement of W Boson Production in Pp Collisions at 5.02 TeV and Optimisation of Electron Identification in Pb+Pb Collisions with the ATLAS Detector by : Jakub Kremer (fizyka)
Download or read book Measurement of W Boson Production in Pp Collisions at 5.02 TeV and Optimisation of Electron Identification in Pb+Pb Collisions with the ATLAS Detector written by Jakub Kremer (fizyka) and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of W Boson Production in Pb+Pb Collisions at 5.02 TeV with the ATLAS Detector by : Piotr Janus
Download or read book Measurement of W Boson Production in Pb+Pb Collisions at 5.02 TeV with the ATLAS Detector written by Piotr Janus and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Total W- and Z-boson Production Cross Sections in Pp Collisions at 2.76 TeV with the ATLAS Detector by : Ksenia Gasnikova
Download or read book Measurement of the Total W- and Z-boson Production Cross Sections in Pp Collisions at 2.76 TeV with the ATLAS Detector written by Ksenia Gasnikova and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Measurement of W Boson Pair Production in Pp Collisions at Sqrt(s) by : Philip Sommer
Download or read book A Measurement of W Boson Pair Production in Pp Collisions at Sqrt(s) written by Philip Sommer and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Zusammenfassung: In this thesis, measurements of the W boson pair production cross section in proton-proton collisions at a centre-of-mass energy of 8 TeV are presented. A dataset corresponding to an integrated luminosity of 22.3 /fb recorded by the ATLAS experiment in the year 2012 is used. The W bosons are identified by their decay products of exactly two leptons with opposite electrical charge, electrons or muons, and missing transverse momentum induced by their corresponding neutrinos. First, a measurement restricted to final states without hadronic jets is presented and differential fiducial cross sections, total cross sections and limits on anomalous triple gauge boson couplings are obtained. A second measurement of the fiducial cross section in association with exactly one hadronic jet is presented. The ratio of fiducial cross sections for different jet multiplicities is reported and the combined fiducial cross section is extrapolated to the total phase space.
Book Synopsis W Boson Production in /bar P/p Collisions At. Sqrt. S by :
Download or read book W Boson Production in /bar P/p Collisions At. Sqrt. S written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The cross section for the production and subsequent decay of the W Intermediate Vector boson to electron and neutrino has been measured in .sqrt.s = 1.8 TeV /bar p/p collisions using the CDF Collider Detector at Fermilab. For this measurement, W events were identified from the large missing transverse energy associated with the unseen neutrino and an electromagnetic cluster passing rather loose electron criteria. 22 events passing the selection missing transverse energy greater than 25 GeV and electron transverse energy greater than 15 GeV were observed in a sample of 25nb/sup /minus/1/ yielding a sigma /center dot/ B = 2.6 ± 0.6 ± 0.5nb. This report agrees well with a parallel analysis based primarily on the identification of isolated electron and is in excellent agreement with theoretical predictions. 12 refs., 7 figs.
Book Synopsis Measurement of the W±Z Boson Pair-production Cross Section in Pp Collisions at by :
Download or read book Measurement of the W±Z Boson Pair-production Cross Section in Pp Collisions at written by and published by . This book was released on 2016 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, the production of W±Z events in proton–proton collisions at a centre-of-mass energy of 13 TeV13 TeV is measured with the ATLAS detector at the LHC. The collected data correspond to an integrated luminosity of 3.2 fb–1. The W±Z candidates are reconstructed using leptonic decays of the gauge bosons into electrons or muons.
Book Synopsis Measurement of VH, H → Bb Production as a Function of the Vector-boson Transverse Momentum in 13 TeV Pp Collisions with the ATLAS Detector by : Anne Kathrin Becker
Download or read book Measurement of VH, H → Bb Production as a Function of the Vector-boson Transverse Momentum in 13 TeV Pp Collisions with the ATLAS Detector written by Anne Kathrin Becker and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Cross-sections of associated production of a Higgs boson decaying into bottomquark pairs and an electroweak gauge boson, W or Z, decaying into leptons are measured as a function of the gauge boson transverse momentum. The measurements are performed in kinematic fiducial volumes defined in the 'simplified template cross-section' framework. The results are obtained using 79.8 fb−1 of proton-proton collisions recorded by the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. All measurements are found to be in agreement with the Standard Model predictions, and limits are set on the parameters of an effective Lagrangian sensitive to modifications of the Higgs boson couplings to the electroweak gauge bosons
Book Synopsis Measurement of the Production Cross-section of Two W Bosons from Seven-trillion-electronvolt Center-of-mass-energy Proton-proton Collisions by : Jacob Thomas Ribnik
Download or read book Measurement of the Production Cross-section of Two W Bosons from Seven-trillion-electronvolt Center-of-mass-energy Proton-proton Collisions written by Jacob Thomas Ribnik and published by . This book was released on 2011 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes the first WW production cross-section measurement in 35.5 pb-1 of s = 7 TeV pp collision data recorded by the CMS detector. The ee, emu and mumu final states are considered. The event yields, expectations and systematic uncertainties arc presented, and the data-driven methods used to estimate the background and selection efficiency are discussed in detail. The cross-section is measured to be sigmaWW = 41.1 +/- 15.3(stat.) +/- 5.8(syst.) +/- 4.5(lumi.) pb. The same data is used to place constraints on anomalous WWgamma and WWZ couplings.
Book Synopsis Measurement of the W±Z Boson Pair-production Cross Section in Pp Collisions at [mml by :
Download or read book Measurement of the W±Z Boson Pair-production Cross Section in Pp Collisions at [mml written by and published by . This book was released on 2016 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, the production of W±Z events in proton-proton collisions at a centre-of-mass energy of 13 TeV13 TeV is measured with the ATLAS detector at the LHC. The collected data correspond to an integrated luminosity of 3.2 fb-1. The W±Z candidates are reconstructed using leptonic decays of the gauge bosons into electrons or muons.
Book Synopsis Measurements of ZH and WH Production in the H → Bb Decay Channel in Pp Collisions at 13 TeV with the ATLAS Detector by : ATLAS Collaboration CERN
Download or read book Measurements of ZH and WH Production in the H → Bb Decay Channel in Pp Collisions at 13 TeV with the ATLAS Detector written by ATLAS Collaboration CERN and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Measurements are presented of the Standard Model Higgs boson decaying into a bb ̄ pair and produced in association with a W or Z boson decaying into leptons, using proton-proton collision data collected between 2015 and 2018 by the ATLAS detector. The measurements use data delivered by the Large Hadron Collider at a centre-of-mass energy of s√=13 TeV, corresponding to an integrated luminosity of 139 fb−1. The production of a Higgs boson in association with a W or Z boson is established, with observed (expected) significances of 4.0 (4.1) and 5.3 (5.1) standard deviations, respectively. Cross-sections of associated production of a Higgs boson decaying into bottom quark pairs with an electroweak gauge boson, W or Z, decaying into leptons are measured as a function of the gauge boson transverse momentum in kinematic fiducial volumes. The cross-section measurements are all consistent with the Standard Model expectations, and the total uncertainties vary from 30% in the high gauge boson transverse momentum regions to 85% in the low regions
Book Synopsis Measurement of the Cross Section for W-boson Production in Association with Jets in Ppbar Collisions at S**ư by :
Download or read book Measurement of the Cross Section for W-boson Production in Association with Jets in Ppbar Collisions at S**ư written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the cross section for W-boson production in association with jets in p{bar p} collisions at √s = 1.96 TeV. The analysis uses a data sample corresponding to an integrated luminosity of 320 pb−1 collected with the CDF II detector. W bosons are identified in their electron decay channel and jets are reconstructed using a cone algorithm. For each W + ≥ n-jet sample (n = 1-4) we measure?(p{bar p} → W + ≥ n-jet) x?(W → e?) with respect to the transverse energy E{sub T} of the nth-highest E{sub T} jet above 20 GeV, for a restricted W → e? decay phase space. The cross sections, corrected for all detector effects, can be directly compared to particle level W + jet(s) predictions. We present here comparisons to leading order and next-to-leading order predictions.
Book Synopsis Generator-level Acceptance for the Measurement of the Inclusive Cross Section of W-boson and Z-boson Production in Pp Collisions at [square Root Of] S by : Alexander Andriatis
Download or read book Generator-level Acceptance for the Measurement of the Inclusive Cross Section of W-boson and Z-boson Production in Pp Collisions at [square Root Of] S written by Alexander Andriatis and published by . This book was released on 2018 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: The inclusive cross section of vector boson production in proton-proton collisions is one of the key measurements for constraining the Standard Model and an important part of the physics program at the LHC. Measurement of the inclusive cross section requires calculating the detector acceptance of decay products. The acceptance of the CMS detector of leptonic decays of W and Z bosons produced in pp colisions at [square root of]s = 5 TeV is calculated using Monte Carlo event simulation. Statistical and systematic uncertainties on the acceptance measurement from PDF and a, uncertainty and higher-order correction are reported. The use of the calculated acceptance in combination with measurements of detector efficiency, luminosity, and particle counting to determine the inclusive cross section is outlined. A total integrated luminosity of 331.64 pb-1 from 2015 and 2017 CMS data at [square root of]s = 5 TeV is available for the calculation of the inclusive cross section.
Book Synopsis Measurement of Associated W + Charm Production in Pp Collisions at $\sqrt{s}$ by :
Download or read book Measurement of Associated W + Charm Production in Pp Collisions at $\sqrt{s}$ written by and published by . This book was released on 2014 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements are presented of the associated production of a W boson and a charm-quark jet (W + c) in pp collisions at a center-of-mass energy of 7 TeV. The analysis is conducted with a data sample corresponding to a total integrated luminosity of 5 inverse femtobarns, collected by the CMS detector at the LHC. W boson candidates are identified by their decay into a charged lepton (muon or electron) and a neutrino. The W + c measurements are performed for charm-quark jets in the kinematic region $p_T^{jet} \gt$ 25 GeV, $
Book Synopsis Measurement of the Cross Section for W-boson Production in Association with Jets in Ppbar Collisions at S**1/2 by :
Download or read book Measurement of the Cross Section for W-boson Production in Association with Jets in Ppbar Collisions at S**1/2 written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the cross section for W-boson production in association with jets in p{bar p} collisions at √s = 1.96 TeV. The analysis uses a data sample corresponding to an integrated luminosity of 320 pb−1 collected with the CDF II detector. W bosons are identified in their electron decay channel and jets are reconstructed using a cone algorithm. For each W + ≥ n-jet sample (n = 1-4) we measure [sigma](p{bar p} → W + ≥ n-jet) x [Beta](W → e[nu]) with respect to the transverse energy E{sub T} of the nth-highest E{sub T} jet above 20 GeV, for a restricted W → e[nu] decay phase space. The cross sections, corrected for all detector effects, can be directly compared to particle level W + jet(s) predictions. We present here comparisons to leading order and next-to-leading order predictions.
Book Synopsis Measurement of the W Boson Production in Association with Jets Using √/s by : Valerie Lang
Download or read book Measurement of the W Boson Production in Association with Jets Using √/s written by Valerie Lang and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evidence of W?? Production in Pp Collisions at S by :
Download or read book Evidence of W?? Production in Pp Collisions at S written by and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Here we report evidence of triple gauge boson production pp→W(l?)??+X, which is accessible for the first time with the 8 TeV LHC data set. The fiducial cross section for this process is measured in a data sample corresponding to an integrated luminosity of 20.3 fb−1, collected by the ATLAS detector in 2012. Events are selected using the W boson decay to e? or ?? as well as requiring two isolated photons. The measured cross section is used to set limits on anomalous quartic gauge couplings in the high diphoton mass region.
Download or read book W Boson Production in written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The cross section for the production and subsequent decay of the W Intermediate Vector boson to electron and neutrino has been measured in .sqrt.s = 1.8 TeV /bar p/p collisions using the CDF Collider Detector at Fermilab. For this measurement, W events were identified from the large missing transverse energy associated with the unseen neutrino and an electromagnetic cluster passing rather loose electron criteria. 22 events passing the selection missing transverse energy greater than 25 GeV and electron transverse energy greater than 15 GeV were observed in a sample of 25nb/sup /minus/1/ yielding a sigma /center dot/ B = 2.6 ± 0.6 ± 0.5nb. This report agrees well with a parallel analysis based primarily on the identification of isolated electron and is in excellent agreement with theoretical predictions. 12 refs., 7 figs.
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