Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Antiproton Collisions At S
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Top Quark Physics At Hadron Colliders
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Author : Arnulf Quadt
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-08-16
Top Quark Physics At Hadron Colliders written by Arnulf Quadt and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-08-16 with Science categories.
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.
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Anti Proton Collisions At S 1 2
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Author :
language : en
Publisher:
Release Date : 2006
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Anti Proton Collisions At S 1 2 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
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Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging Inproton Anti Proton Collisions At S 1 2
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Author : Tobias F. Golling
language : en
Publisher:
Release Date : 2005
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging Inproton Anti Proton Collisions At S 1 2 written by Tobias F. Golling and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Two alternative measurements of the t{bar t} production cross section at {radical}s = 1.96 TeV in proton-antiproton collisions in the lepton+jets channel are presented. The t{bar t} production cross section is extracted by combining the kinematic event information in a multivariate discriminant. The measurement yields {sigma}{sub p{bar p} {yields} t{bar t} + x} = 5.13{sub -1.57}{sup +1.76}(stat){sub -1.10}{sup +0.96}(syst) {+-} 0.33 (lumi) pb in the muon+jets channel, using 229.1 pb{sup -1}, and in the combination with the electron+jets channel 226.3 pb{sup -1} {sigma}{sub p{bar p} {yields} t{bar t} + x} = 6.60{sub -1.28}{sup +1.37}(stat){sub -1.11}{sup +1.25}(syst) {+-} 0.43 (lumi) pb. The second measurement presented reconstructs explicitly secondary vertices to d lifetime b-tagging. The measurement combines the muon+jets and the electron+jets channel, using 158.4 pb{sup -1} and 168.8 pb{sup -1}, respectively: {sigma}{sub p{bar p} {yields} t{bar t} + x} = 8.24{sub -1.25}{sup +1.34}(stat){sub -1.63}{sup +1.89}(syst) {+-} 0.54 (lumi) pb.
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Anti Proton Collisions At U221a S
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Author :
language : en
Publisher:
Release Date : 2005
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Anti Proton Collisions At U221a S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Two alternative measurements of the t¯t production cross section at √s = 1.96 TeV in proton-antiproton collisions in the lepton+jets channel are presented. The t¯t production cross section is extracted by combining the kinematic event information in a multivariate discriminant. The measurement yields ?p¯p → t¯t + x = 5.13-1.57+1.76(stat)-1.10+0.96(syst) ± 0.33 (lumi) pb in the muon+jets channel, using 229.1 pb-1, and in the combination with the electron+jets channel (226.3 pb-1) ?p¯p → t¯t + x = 6.60-1.28+1.37(stat)-1.11+1.25(syst) ± 0.43 (lumi) pb. The second measurement presented reconstructs explicitly secondary vertices to d lifetime b-tagging. The measurement combines the muon+jets and the electron+jets channel, using 158.4 pb-1 and 168.8 pb-1, respectively: ?p¯p → t¯t + x = 8.24-1.25+1.34(stat)-1.63+1.89(syst) ± 0.54 (lumi) pb.
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Antiproton Collisions At Root
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Author : Tobias Golling
language : en
Publisher:
Release Date : 2005
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Antiproton Collisions At Root written by Tobias Golling and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Antiproton Collisions At S
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Author : Tobias Golling
language : en
Publisher:
Release Date : 2005
Measurements Of The Top Quark Pair Production Cross Section In Lepton Jets Final States Using A Topological Multivariate Technique As Well As Lifetime B Tagging In Proton Antiproton Collisions At S written by Tobias Golling and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Deutsche Nationalbibliographie Und Bibliographie Der Im Ausland Erschienenen Deutschsprachigen Ver Ffentlichungen
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Author :
language : de
Publisher:
Release Date : 2005
Deutsche Nationalbibliographie Und Bibliographie Der Im Ausland Erschienenen Deutschsprachigen Ver Ffentlichungen written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Dissertations, Academic categories.
Deutsche Nationalbibliografie
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Author :
language : de
Publisher:
Release Date : 2005-07
Deutsche Nationalbibliografie written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-07 with German imprints categories.
Measurement Of The Top Quark Pair Production Cross Section And An In Situ B Tagging Efficiency Calibration With Atlas In Pp Collisions At S
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Author : Bin Guo
language : en
Publisher:
Release Date : 2012
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 has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
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.
Top Quark Pair Production Cross Section In The Lepton Jets Channel Using B Tagging At
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Author :
language : en
Publisher:
Release Date : 2008
Top Quark Pair Production Cross Section In The Lepton Jets Channel Using B Tagging At written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
The top quark pair production cross section measurement in the lepton+jets channel with b-tagging algorithm is described. About 900 pb−1 data collected by the D0 detector at the Fermilab Tevatron are used for this analysis. In this thesis, event selection, background estimation, and cross section calculation are discussed in detail. In addition, calibration of the Luminosity Monitor readout electronics and a new b-tagging algorithm, the SLTNN tagger, are also discussed in this thesis.