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Measurement Of The Top Quark Pair Production Cross Section With The Atlas Experiment At S
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Author :Anna Christine Henrichs Publisher :Springer Science & Business Media ISBN 13 :3319014870 Total Pages :231 pages Book Rating :4.3/5 (19 download)
Book Synopsis Top Quark Pair Production by : Anna Christine Henrichs
Download or read book Top Quark Pair Production written by Anna Christine Henrichs and published by Springer Science & Business Media. This book was released on 2013-10-04 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Before any kind of new physics discovery could be made at the LHC, a precise understanding and measurement of the Standard Model of particle physics' processes was necessary. The book provides an introduction to top quark production in the context of the Standard Model and presents two such precise measurements of the production of top quark pairs in proton-proton collisions at a center-of-mass energy of 7 TeV that were observed with the ATLAS Experiment at the LHC. The presented measurements focus on events with one charged lepton, missing transverse energy and jets. Using novel and advanced analysis techniques as well as a good understanding of the detector, they constitute the most precise measurements of the quantity at that time.
Book Synopsis Measurement of the Top Quark Pair Production Cross Section with the ATLAS Experiment at √s by : Volker Vorwerk
Download or read book Measurement of the Top Quark Pair Production Cross Section with the ATLAS Experiment at √s written by Volker Vorwerk and published by . This book was released on 2011 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simultaneous Measurement of the Top Quark Pair Production Cross-section and Rb in the ATLAS Experiment by : Jordi Nadal Serrano
Download or read book Simultaneous Measurement of the Top Quark Pair Production Cross-section and Rb in the ATLAS Experiment written by Jordi Nadal Serrano and published by . This book was released on 2012* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of Top Quark Pair Production Cross-sections with the ATLAS Experiment by : Abigail O'Rourke
Download or read book Measurements of Top Quark Pair Production Cross-sections with the ATLAS Experiment written by Abigail O'Rourke and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Precision Measurements of the Top Quark Pair Production Cross Section in the Single Lepton Channel with the ATLAS Experiment by : Anna Christine Henrichs
Download or read book Precision Measurements of the Top Quark Pair Production Cross Section in the Single Lepton Channel with the ATLAS Experiment written by Anna Christine Henrichs and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Top Quark Pair Production Cross Section with ATLAS Detector by : Babak Abi
Download or read book Measurement of the Top Quark Pair Production Cross Section with ATLAS Detector written by Babak Abi and published by . This book was released on 2012 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Top Quark Pair Production Cross Section and an In-situ B-tagging Efficiency Calibration with ATLAS in Pp Collisions at √s by : Bin Guo
Download or read book Measurement of the Top Quark Pair Production Cross Section and an In-situ B-tagging Efficiency Calibration with ATLAS in Pp Collisions at √s written by Bin Guo and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the top anti-top quark (ttbar)production cross section in the dilepton final states from proton-proton collisions at a center of mass energy at 7 TeV at the LHC. A b-tagging algorithm based on tracks displaced from the event interaction vertex is applied to identify bottom quark jets from top quark decay and reject background events. Given the relatively pure sample of bottom quark jets in ttbar dilepton final states, a new technique to measure in-situ the b-tagging efficiency is introduced that uses the distribution of the number of observed b-tagged jets. We present results with data collected at the ATLAS detector in 2010 with an integrated luminosity of 35 pb-1. The measured ttbar cross section is 176 +22/-21 (stat.) ± 20 (syst.) ± 6 (lum.) pb in the dilepton channel. We will also discuss the future prospects of this measurement.
Book Synopsis Measurement of the Top Quark Pair Production Cross Section in Proton-proton Collisions at $\sqrt{s} by :
Download or read book Measurement of the Top Quark Pair Production Cross Section in Proton-proton Collisions at $\sqrt{s} written by and published by . This book was released on 2015 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The top quark pair production cross section is measured for the first time in proton-proton collisions at √s= 13 TeV by theCMS experiment at the CERN LHC, using data corresponding to an integrated luminosity of 42 pb-1. The measurement is performed by analyzing events with at least one electron and one muon of opposite charge, and at least two jets. We then measured the cross section and found that was 769 ± 60 (stat) ± 55 (syst) ± 92 (lumi) pb, in agreement with the expectation from the standard model.
Book Synopsis Top-Quark Pair Production Cross Sections and Calibration of the Top-Quark Monte-Carlo Mass by : Jan Kieseler
Download or read book Top-Quark Pair Production Cross Sections and Calibration of the Top-Quark Monte-Carlo Mass written by Jan Kieseler and published by Springer. This book was released on 2016-06-15 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the first experimental calibration of the top-quark Monte-Carlo mass. It also provides the top-quark mass-independent and most precise top-quark pair production cross-section measurement to date. The most precise measurements of the top-quark mass obtain the top-quark mass parameter (Monte-Carlo mass) used in simulations, which are partially based on heuristic models. Its interpretation in terms of mass parameters used in theoretical calculations, e.g. a running or a pole mass, has been a long-standing open problem with far-reaching implications beyond particle physics, even affecting conclusions on the stability of the vacuum state of our universe. In this thesis, this problem is solved experimentally in three steps using data obtained with the compact muon solenoid (CMS) detector. The most precise top-quark pair production cross-section measurements to date are performed. The Monte-Carlo mass is determined and a new method for extracting the top-quark mass from theoretical calculations is presented. Lastly, the top-quark production cross-sections are obtained – for the first time – without residual dependence on the top-quark mass, are interpreted using theoretical calculations to determine the top-quark running- and pole mass with unprecedented precision, and are fully consistently compared with the simultaneously obtained top-quark Monte-Carlo mass.
Book Synopsis Measurement of the Top Quark-Pair Production Cross Section With ATLAS in Pp Collisions at $\sqrt{s} by :
Download or read book Measurement of the Top Quark-Pair Production Cross Section With ATLAS in Pp Collisions at $\sqrt{s} written by and published by . This book was released on 2013 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of Differential Cross-sections in Top-quark Pair Events with a High Transverse Momentum Top Quark and Limits on Beyond the Standard Model Contributions to Top-quark Pair Production with the ATLAS Detector at [square Root]s by : [Study Group] ATLAS Collaboration CERN
Download or read book Measurements of Differential Cross-sections in Top-quark Pair Events with a High Transverse Momentum Top Quark and Limits on Beyond the Standard Model Contributions to Top-quark Pair Production with the ATLAS Detector at [square Root]s written by [Study Group] ATLAS Collaboration CERN and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Production Cross-section of a Single Top Quark in Association with a W Boson at 8 TeV with the ATLAS Experiment by :
Download or read book Measurement of the Production Cross-section of a Single Top Quark in Association with a W Boson at 8 TeV with the ATLAS Experiment written by and published by . This book was released on 2016 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cross-section for the production of a single top quark in association with a W boson in proton-proton collisions at √s = 8 is measured. The dataset corresponds to an integrated luminosity of 20.3 fb-1, collected by the ATLAS detector in 2012 at the Large Hadron Collider at CERN. Events containing two leptons and one central b-jet are selected. The Wt signal is separated from the backgrounds using boosted decision trees, each of which combines a number of discriminating variables into one classifier. Production of Wt events is observed with a significance of 7.7[sigma]. The cross-section is extracted in a profile likelihood fit to the classifier output distributions. The Wt cross-section, inclusive of decay modes, is measured to be 23.0±1.3(stat.)-3.5+3.2(syst.)±1.1(lumi.) pb. The measured cross-section is used to extract a value for the CKM matrix element.
Book Synopsis Measurement of the Top Quark Pair Production Cross Section with the ATLAS Detector at LHC in Pp Collisions at √s by : Tatevik Abajyan
Download or read book Measurement of the Top Quark Pair Production Cross Section with the ATLAS Detector at LHC in Pp Collisions at √s written by Tatevik Abajyan and published by . This book was released on 2012 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cross-section Measurements of Top-quark Pair Production in Association with a Hard Photon at 13 TeV with the ATLAS Detector by : Knut Zoch
Download or read book Cross-section Measurements of Top-quark Pair Production in Association with a Hard Photon at 13 TeV with the ATLAS Detector written by Knut Zoch and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 25 years after the top quark's discovery, the Large Hadron Collider at CERN produces proton-proton collision data on unprecedented scales at unprecedented energies - and has heralded an era of top-quark precision measurements. The production of a top-quark pair in association with a photon ($t bar{t} gamma$) gives access to the electromagnetic top-photon coupling, one of the fundamental properties of the top quark. Various extensions of the Standard Model predict modifications of the coupling strength or structure, and deviations from the Standard Model prediction of the $t bar{t} gamma$ pr...
Book Synopsis A Novel Approach to Precision Measurements of the Top Quark-antiquark Pair Production Cross Section with the ATLAS Experiment by : Clemens Gregor Lange
Download or read book A Novel Approach to Precision Measurements of the Top Quark-antiquark Pair Production Cross Section with the ATLAS Experiment written by Clemens Gregor Lange and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Differentiating Top-quark - Photon Coupling: Inclusive and Differential Cross-section Measurements of Top-quark Pair Production in Association with a Photon in the Single Lepton Channel in Pp Collisions Data at √s 8TeV with the ATLAS Experiment by : Naim Bora Atlay
Download or read book Differentiating Top-quark - Photon Coupling: Inclusive and Differential Cross-section Measurements of Top-quark Pair Production in Association with a Photon in the Single Lepton Channel in Pp Collisions Data at √s 8TeV with the ATLAS Experiment written by Naim Bora Atlay and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Top Quark Pair Production Cross Section in Proton-proton Collisions at Center -o-mass-energies of 7 TeV in Final States with a [tau] Lepton with the ATLAS Detector by : Universitat de València. Facultat de Física
Download or read book Measurement of the Top Quark Pair Production Cross Section in Proton-proton Collisions at Center -o-mass-energies of 7 TeV in Final States with a [tau] Lepton with the ATLAS Detector written by Universitat de València. Facultat de Física and published by . This book was released on 2014 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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