Direct Measurement Of The W Boson Decay Width In Proton Antiproton Collisions At U221as PDF Download
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Total Pages | : 180 |
Release | : 2004 |
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Download Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at {u221A}s Book in PDF, ePub and Kindle
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 ?
Author | : William Joseph Ashmanskas |
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Total Pages | : 442 |
Release | : 1998 |
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Download A Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at 1.8 TeV Book in PDF, ePub and Kindle
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Release | : 2004 |
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Download Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at Sqrt(s) Book in PDF, ePub and Kindle
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Release | : 2005 |
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Download Direct Measurement of the W Boson Decay Width in Proton-Antiproton Collisions at S**(1/2) Book in PDF, ePub and Kindle
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
Author | : Jun-jie Zhu |
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Total Pages | : 159 |
Release | : 2004 |
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Download Direct Measurement of the W Boson Decay Width in Proton-antiproton Collisions at S**(1/2) Book in PDF, ePub and Kindle
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
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Total Pages | : 186 |
Release | : 2008 |
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Download A Direct Measurement of the $W$ Decay Width Book in PDF, ePub and Kindle
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.
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Total Pages | : 212 |
Release | : 2004 |
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Download Measurement of the W + ? Production in Proton - Anti-proton Collisions at {u221A}s Book in PDF, ePub and Kindle
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.
Author | : Eric Michael Flattum |
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Total Pages | : 368 |
Release | : 1996 |
Genre | : Proton-antiproton interactions |
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Download A Measurement of the W Boson Mass in Proton-antiproton Collisions at a Center of Mass Energy of 1.8 TeV Book in PDF, ePub and Kindle
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Total Pages | : 125 |
Release | : 2004 |
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Download A Measurement of Z Boson Production and Rapidity Distribution in Proton-Antiproton Collisions at {u221A}s Book in PDF, ePub and Kindle
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.
Author | : Jie Yang |
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Total Pages | : 212 |
Release | : 1995 |
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Download Measurement of the Width of the W Boson in Proton-antiproton Collisions at (the Square Root Of) S Book in PDF, ePub and Kindle