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Direct Measurement Of The W Boson Decay Width In Proton Antiproton Collisions At U221as
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Book Synopsis Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at {u221A}s by :
Download or read book Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at {u221A}s written by and published by . This book was released on 2004 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes a direct measurement of the W boson total decay width, ?W, using the D0 detector at the Fermilab Tevatron Collider. The measurement uses an integrated luminosity of 177.3 pb-1 data, collected during the 2002-2003 run. The width is determined from the shape of the transverse mass distribution, MT, by fitting the data in the tail region 100 MsubT/sub 200 GeV. The result if ?
Book Synopsis A Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at 1.8 TeV by : William Joseph Ashmanskas
Download or read book A Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at 1.8 TeV written by William Joseph Ashmanskas and published by . This book was released on 1998 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at Sqrt(s) by :
Download or read book Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at Sqrt(s) written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Direct Measurement of the W Boson Decay Width in Proton-Antiproton Collisions at S**(1/2) by :
Download or read book Direct Measurement of the W Boson Decay Width in Proton-Antiproton Collisions at S**(1/2) written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes a direct measurement of the W boson total decay width, [Lambda][sub W], using the D0 detector at the Fermilab Tevatron Collider. The measurement uses an integrated luminosity of 177.3 pb[sup -1] data, collected during the 2002-2003 run. The width is determined from the shape of the transverse mass distribution, M[sub T], by fitting the data in the tail region 100
Book Synopsis Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at S**(1/2) by : Jun-jie Zhu
Download or read book Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at S**(1/2) written by Jun-jie Zhu and published by . This book was released on 2004 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes a direct measurement of the W boson total decay width, {Lambda}{sub W}, using the D0 detector at the Fermilab Tevatron Collider. The measurement uses an integrated luminosity of 177.3 pb{sup -1} data, collected during the 2002-2003 run. The width is determined from the shape of the transverse mass distribution, M{sub T}, by fitting the data in the tail region 100
Book Synopsis A Direct Measurement of the $W$ Decay Width by :
Download or read book A Direct Measurement of the $W$ Decay Width written by and published by . This book was released on 2008 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: A direct measurement of the W boson total decay width is presented in proton-antiproton collisions at (square root)s = 1.96 TeV using data collected by the CDF II detector. The measurement is made by fitting a simulated signal to the tail of the transverse mass distribution in the electron and muon decay channels. An integrated luminosity of 350 pb−1 is used, collected between February 2002 and August 2004. Combining the results from the separate decay channels gives the decay width as 2.038 ± 0.072 GeV in agreement with the theoretical prediction of 2.093 ± 0.002 GeV. A system is presented for the management of detector calibrations using a relational database schema. A description of the implementation and monitoring of a procedure to provide general users with a simple interface to the complete set of calibrations is also given.
Book Synopsis Measurement of the W + ? Production in Proton - Anti-proton Collisions at {u221A}s by :
Download or read book Measurement of the W + ? Production in Proton - Anti-proton Collisions at {u221A}s written by and published by . This book was released on 2004 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a measurement of the $ar{p}$p → W? + X → ev? + X production cross section using data form the Collider Detector at Fermilab. The p$ar{p}$ collisions were provided by the Tevatron Collider at a center of mass energy of 1.96 TeV. Electroweak theory includes the trilinear vector boson coupling, WW?, which contributes to the ev? final state. The electron decay channel of the W provides a clean sample to study the production of diboson pairs. The measurement of the production cross section tests the structure of the non-Abelian character of Electroweak theory.
Book Synopsis A Measurement of the W Boson Mass in Proton-antiproton Collisions at a Center of Mass Energy of 1.8 TeV by : Eric Michael Flattum
Download or read book A Measurement of the W Boson Mass in Proton-antiproton Collisions at a Center of Mass Energy of 1.8 TeV written by Eric Michael Flattum and published by . This book was released on 1996 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Measurement of Z Boson Production and Rapidity Distribution in Proton-Antiproton Collisions at {u221A}s by :
Download or read book A Measurement of Z Boson Production and Rapidity Distribution in Proton-Antiproton Collisions at {u221A}s written by and published by . This book was released on 2004 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-precision measurements are made of Z boson production in proton-antiproton collisions at √s = 1.96 TeV recorded by the Collider Detector at Fermilab, using the electron decay channel. The cross-section times branching ratio is measured to be ?Z · Br(Z → e+e-) = (255.7 ± 2.4stat ± 5.2sys ± 15.2lum)pb in a dataset of 194 pb-1 collected between March 2002 and June 2003. This agrees well with theoretical predictions. The cross-section for W boson production in the electron channel has also been measured in the subset of this dataset of 72 pb-1 collected up until January 2003. Using this smaller dataset the ratio of cross-sections is determined to be R ≡ ?W · Br(W → e?)/?Z · Br(Z → ee) = 10.82 ± 0.18stat ± 0.16sys. Combining these results with measurements made in the muon channel gives R = 10.92 ± 0.15stat ± 0.14sys (e + ? channels), from which the branching ratio of the W to electrons and muons, and the total width of the W, have been extracted: Br(W → l?) = 0.1089 ± 0.0022 (l = e,?); ?(W) = 2078.8 ± 41.4 MeV, which are in good agreement with the Standard Model values and with other measurements. The CKM quark mixing matrix element.
Book Synopsis Measurement of the Width of the W Boson in Proton-antiproton Collisions at (the Square Root Of) S by : Jie Yang
Download or read book Measurement of the Width of the W Boson in Proton-antiproton Collisions at (the Square Root Of) S written by Jie Yang and published by . This book was released on 1995 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the W Boson Mass in Proton-antiproton Collisions at [square Root Of]s by : Qiang Zhu
Download or read book Measurement of the W Boson Mass in Proton-antiproton Collisions at [square Root Of]s written by Qiang Zhu and published by . This book was released on 1994 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of W and Z Boson Production and Extraction of the W Width and Branching Ratios at CDF by :
Download or read book Measurement of W and Z Boson Production and Extraction of the W Width and Branching Ratios at CDF written by and published by . This book was released on 1994 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results from W and Z boson production in proton-antiproton collisions at √s = 1.8 TeV using the CDF detector. We measure the W and Z cross sections times lepton branching ratio, [sigma](p{bar p} → W)·B(W → l[nu]{sub l}) and [sigma](p {bar p} → Z)· B(Z → k+l−) l = e, [mu]. We also measure the ratio: R{sub l} = [sigma] · B(W → l[nu]{sub l})/[sigma] · B(Z → ll). From R{sub l}, we extract the W electron and muon branching ratios, BR(W → l[nu]{sub l}, and the total W width, [Gamma]{sub W}. In addition, high transverse mass W →e[nu]{sub e}, candidates provide an alternate, direct measurement of [Gamma]{sub W}.
Author :Trischuk, William Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages :94 pages Book Rating :4.:/5 (215 download)
Book Synopsis A Measurement of the W Boson Mass in 1.8 TeV Proton-antiproton Collisions [microform] by : Trischuk, William
Download or read book A Measurement of the W Boson Mass in 1.8 TeV Proton-antiproton Collisions [microform] written by Trischuk, William and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1990 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the $W$ Boson Mass in Proton-Antiproton Collisions at a Center of Mass Energy of 1.96 TeV. by :
Download or read book Measurement of the $W$ Boson Mass in Proton-Antiproton Collisions at a Center of Mass Energy of 1.96 TeV. written by and published by . This book was released on 2010 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: I present the measurement of the mass of the W Boson in the electron channel using 4.4 fb-1 of p $ar{p}$ collisions at √s = 1:96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider.
Book Synopsis Measurement of W + ? Production in the W to Muon Decay Channel in Proton - Anti-proton Collisions at {u221A}s by :
Download or read book Measurement of W + ? Production in the W to Muon Decay Channel in Proton - Anti-proton Collisions at {u221A}s written by and published by . This book was released on 2005 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production cross section and the kinematic properties of the decay products of W? in the W → ?v decay channel from p$ar{p}$ collisions at √s = 1.96 TeV are presented. The measurement use the high pT muon data from the upgraded Collider Detector at Fermilab (CDF). The data were collected between March 2002 and September 2003. The total integrated luminosities are 192 pb-1 with the muon detector which covers the pseudorapidity region of.
Book Synopsis A Measurement of W Boson-photon and Z Boson-photon Cross Sections in the Muon Channel in 1.8 TeV Proton-antiproton Collisions by : Christopher B. Luchini
Download or read book A Measurement of W Boson-photon and Z Boson-photon Cross Sections in the Muon Channel in 1.8 TeV Proton-antiproton Collisions written by Christopher B. Luchini and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have measured the production cross sections x decay branching ratios for W + $gamma$ and Z + $gamma$ in the muon channel in $sqrt{s}$ = 1.8 TeV p-p collisions, from 3.54 $pm$ 0.24 $pbsp{-1}$ of muon W and Z data from the CDF 1988-89 Tevatron collider run. For photons in the central region ($vertetavert $ 5.0 GeV and lepton-photon angular separation $Delta Rsb{ellsbgamma} >$ 0.7, 5 $Wsb{gamma}$ candidates and 2 $Zsb{gamma}$ candidates were observed. From these events, the $sigma cdot BR(W + gamma)$ and $sigma cdot BR(Z + gamma)$ cross sections for the muon samples are measured, and compared with Standard Model predictions. We also determined the cross section ratios, $Wsb{gamma}$/W, $Zsb{gamma}$/Z and $Wsb{gamma}/Zsb{gamma}$, which, along with the previous CDF measurement(s) of the W/Z cross section ratio provide new insight on the Standard Model, and are sensitive to anomalous couplings of the W and Z bosons. Using the $Wsb{gamma}$ and $Zsb{gamma}$ absolute cross section measurements, the absence of an excess of hard photons accompanying W and Z boson production enables us to obtain direct limites on anomalous $WWsb{gamma}$, $ZZsb{gamma}$ and $Zsb{gammagamma}$ couplings. For saturation of unitarity, these experimental limits impose constraints on possible internal (composite) structure for the W and Z bosons with compositeness scale sensitivity up to $Lambdasb{W} sim$ 1 TeV and $Lambdasb{Z} sim$ 250-500 GeV, respectively. These compositeness scale limits probe the possible internal structure of the W to ${sim}
Book Synopsis Measurement of Z Boson Transverse Momentum in Proton - Anti-proton Collisions at {u221A}s by :
Download or read book Measurement of Z Boson Transverse Momentum in Proton - Anti-proton Collisions at {u221A}s written by and published by . This book was released on 2007 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation describes a measurement of the shape of the boson transverse momentum distribution in p$ar{p}$ → Z/?* → e+e- + X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with electron-positron mass between 70 Msubee/sub 110 GeV/csup2/sup and uses 976 pb
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