Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Identification Of Top Quark Production Using Kinematic And B Tagging Techniques In The Lepton Jets Channel In Pp Collisions At Square Root S
Download Identification Of Top Quark Production Using Kinematic And B Tagging Techniques In The Lepton Jets Channel In Pp Collisions At Square Root S full books in PDF, epub, and Kindle. Read online Identification Of Top Quark Production Using Kinematic And B Tagging Techniques In The Lepton Jets Channel In Pp Collisions At Square Root S ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Identification of Top Quark Production Using Kinematic and B-tagging Techniques in the Lepton + Jets Channel in Pp̄ Collisions at [square Root] S by : Gareth M. Houk
Download or read book Identification of Top Quark Production Using Kinematic and B-tagging Techniques in the Lepton + Jets Channel in Pp̄ Collisions at [square Root] S written by Gareth M. Houk and published by . This book was released on 1996 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Top Quark Mass from B-tagged Events in the Lepton Plus Jets Channel in Pp̄ Collisions at [square Root of S] by : Nathan Robert-Claire Eddy
Download or read book Measurement of the Top Quark Mass from B-tagged Events in the Lepton Plus Jets Channel in Pp̄ Collisions at [square Root of S] written by Nathan Robert-Claire Eddy and published by . This book was released on 1999 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 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) by : Tobias F. Golling
Download or read book 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 published by . This book was released on 2005 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
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 Search for T-channel Single Top Quark Production in Pp ̄collisions at 1.96 TeV by : Philip Michael Perea
Download or read book Search for T-channel Single Top Quark Production in Pp ̄collisions at 1.96 TeV written by Philip Michael Perea and published by . This book was released on 2006 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Top Quark Pair Production Cross Section in the Lepton+jets Channel Using B-tagging at by :
Download or read book Top Quark Pair Production Cross Section in the Lepton+jets Channel Using B-tagging at written by and published by . This book was released on 2008 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Observation of the Top Quark written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 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) by :
Download or read book 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 published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract Not Provided.
Book Synopsis Observation of Top Quark Production Using Kinematic Techniques by :
Download or read book Observation of Top Quark Production Using Kinematic Techniques written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present analysis results of the top quark production using kinematic techniques in p[bar p] collisions at[radical]s= 1.8 TeV with the Collider Detector at Fermilab (CDF). We analyzed a data sample corresponding to an integrated luminosity of 67 pb[sup[minus]1]. First, we compare the kinematic properties, the second and third leading jet E[sub T] of W+> 3 jet events with expectations for t[bar t] production and its back-ground processes, predominantly direct W+ jet production. The probability that backgrounds fake the excess in the signal region was found to be less than 0.26%. Next, we use a scaler sum of the transverse energies of the lepton, neutrino and jets in W+[ge]4 jet events. This analysis shows t[bar t] events exist significantly in the event sample, and enables us to estimate the top quark mass to be M[sub top]= 180[plus-minus] 12[sub[minus]15][sup+19] GeV/c[sup 2]. Finally, we analyse the dijet invariant mass in the W+[ge]4 jet events. It shows a significant mass peak consistent with a mass peak of W decaying into dijet. From these results and counting experiment, we have confirmed previous evidence reported in 1994 April and observed top quark production.
Book Synopsis Measurement of the Top Quark Pair Production Cross Section and an In-situ B-tagging Efficiency Calibration with ATLAS in Proton-proton Collisions at Center of Mass Energy 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 Proton-proton Collisions at Center of Mass Energy written by Bin Guo and published by . This book was released on 2011 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the top anti-top quark (tt ̄ ) 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 tt ̄ 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 tt ̄ cross section is 176+22-21stat. +20-20 (syst.) +/- 6 (lum.) pb in the dilepton channel. We will also discuss the future prospects of this measurement.
Book Synopsis 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] by : Tobias Golling
Download or read book 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 published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Results on Top Quark Production from by :
Download or read book Results on Top Quark Production from written by and published by . This book was released on 1995 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The D{O} Collaboration reports on a search for the Standard Model top quark in p{bar p} collisions at (square root)s = 1.8 TeV at the Fermilab Tevatron, with an integrated luminosity of approximately 50 pb−1. We have searched for t{bar t} production in the dilepton and single lepton channels with and without tagging of b quark jets. We observe 17 events with an expected background of 3.8 " 0.6 events. The probability for an upward, fluctuation of the background to produce the observed signal is 2 x 10−6 (equivalent to 4.6 standard deviations). The kinematic properties of the excess events are consistent with top quark decay. We conclude that we have observed the top quark and measure its mass to be 19921{sup +19}(stat.)"22 (syst.) GeV/c2 and its production cross section to be 6.4 " 2.2 pb.
Book Synopsis 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 by :
Download or read book 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 published by . This book was released on 2005 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Top Quark Search in D[O] from the Lepton + Jets Mode by :
Download or read book Top Quark Search in D[O] from the Lepton + Jets Mode written by and published by . This book was released on 1992 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The D0 collaboration has searched for Top quark production at (square root){bar s} = 1.8 TeV in p{bar p} collisions at Fermilab using a data sample corresponding to an integrated luminosity of 1.1 pb{sup - 1}, collected during the 1992 Tevatron run. We report the preliminary results of a search for t{bar t} production in which the Top quark decays to a W boson plus ab quark where one W decaying leptonically and the other decaying hadronically. Future prospects for extending the search for Top in the lepton plus jets channel are discussed.
Book Synopsis Measurement of the Top Quark Mass at CDF Using the Template Method in the Lepton + Jets Channel by :
Download or read book Measurement of the Top Quark Mass at CDF Using the Template Method in the Lepton + Jets Channel written by and published by . This book was released on 2008 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the top quark mass in p{bar p} collisions at (square root)s = 1.96 TeV is presented. The analysis uses a template method, in which the overconstrained kinematics of the Lepton+Jets channel of the t{bar t} system are used to measure a single quantity, the reconstructed top quark mass, that is strongly correlated with the true top quark mass. in addition, the dijet mass of the hadronically decaying W boson is used to constrain in situ the uncertain jet energy scale in the CDF detector. Two-dimensional probability density functions are derived using a kernel density estimate-based machinery. Using 1.9 fb−1 of data, the top quark mass is measured to be 171.8{sub -1.9}{sup +1.9}(stat.) ± 1.0(syst.)GeV/c2.
Book Synopsis Measurement of the Single Top Quark Cross Section in the Lepton Plus Jets Final State in Proton-Antiproton Collisions at a Center of Mass Energy of 1.96 TeV Using the CDF II Detector by :
Download or read book Measurement of the Single Top Quark Cross Section in the Lepton Plus Jets Final State in Proton-Antiproton Collisions at a Center of Mass Energy of 1.96 TeV Using the CDF II Detector written by and published by . This book was released on 2012 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the single top quark cross section in the lepton plus jets final state using an integrated luminosity corresponding to 7.5 fb-1 of p\bar p collision data collected by the Collider Detector at Fermilab. The single top candidate events are identified by the signature of a charged lepton, large missing transverse energy, and two or three jets with at least one of them identified as originating from a bottom quark. A new Monte Carlo generator POWHEG is used to model the single top quark production processes, which include s-channel, t-channel, and Wt-channel. A neural network multivariate method is exploited to discriminate the single top quark signal from the comparatively large backgrounds. We measure a single top production cross section of $3.04^{+0.57}_{-0.53} (\mathrm{stat.~+~syst.})$ pb assuming $m_{\rm top}=172.5$~GeV/$c^2$. In addition, we extract the CKM matrix element value $
![Download Identification of Top Quark Production Using Kinematic and B-tagging Techniques in the Lepton + Jets Channel in Pp̄ Collisions at [square Root] S PDF Online Free](https://books.google.com/books/content/images/frontcover/42_HPgAACAAJ?fife=w200-h370)
![Download Measurement of the Top Quark Mass from B-tagged Events in the Lepton Plus Jets Channel in Pp̄ Collisions at [square Root of S] PDF Online Free](https://books.google.com/books/content/images/frontcover/TkofAQAAMAAJ?fife=w200-h370)
![Download 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] PDF Online Free](https://books.google.com/books/content/images/frontcover/y_DTZwEACAAJ?fife=w200-h370)
![Download Top Quark Search in D[O] from the Lepton + Jets Mode PDF Online Free](https://books.google.com/books/content/images/frontcover/3m2mAQAACAAJ?fife=w200-h370)
