Measurements of the Mass and Width of the W Boson from CDF.
| Author | : |
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| Total Pages | : |
| Release | : 1994 |
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Precision Measurement of the Mass and Width of the W Boson at CDF
| Author | : Sarah Alam Malik |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 2010 |
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| ISBN | : |
Download Precision Measurement of the Mass and Width of the W Boson at CDF Book in PDF, ePub and Kindle
Precision Measurement of the Mass and Width of the W Boson at CDF.
| Author | : |
| Publisher | : |
| Total Pages | : 206 |
| Release | : 2009 |
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A precision measurement of the mass and width of the W boson is presented. The W bosons are produced in proton antiproton collisions occurring at a centre of mass energy of 1.96 TeV at the Tevatron accelerator. The data used for the analyses is collected by the Collider Detector at Fermilab (CDF) and corresponds to an average integrated luminosity of 350 pb−1 for the W width analysis for the electron and muon channels and an average integrated luminosity of 2350 pb−1 for the W mass analysis. The mass and width of the W boson is extracted by fitting to the transverse mass distribution, with the peak of the distribution being most sensitive to the mass and the tail of the distribution sensitive to the width. The W width measurement in the electron and muon channels is combined to give a final result of 2032 ± 73 MeV. The systematic uncertainty on the W mass from the recoil of the W boson against the initial state gluon radiation is discussed. A systematic study of the recoil in Z --> ee− events where one electron is reconstructed in the central calorimeter and the other in the plug calorimeter and its effect on the W mass is presented for the first time in this thesis.
Combination of CDF and D0 Results on the W Boson Mass and Width
| Author | : |
| Publisher | : |
| Total Pages | : 11 |
| Release | : 2008 |
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The results on the direct measurements of the W-boson mass and width, based on the data collected by the Tevatron experiments CDF and D− at Fermilab are summarized and combined. The CDF Run-0 (1988-1889) and Run-I (1992-1995) results have been re-averaged using the BLUE method and combined with Run-I D− results and the latest published results from CDF taken from the first period of Run-II (2001-2004). The results are corrected to have consistency between the parton distribution functions and electroweak parameters. The resulting Tevatron averages for the mass and total decay width of the W boson are: M{sub W} = 80432 ± 39 MeV and [Lambda]{sub W} = 2056 ± 62 MeV. The inclusion of a preliminary Run-II measurement of [Lambda]{sub W} from D−0 gives [Lambda]{sub W} = 2050 ± 58 MeV.
Precision Measurement of the Mass and Width of the W Boson at CDF.
| Author | : S. Malik |
| Publisher | : |
| Total Pages | : |
| Release | : 2010 |
| Genre | : |
| ISBN | : |
Download Precision Measurement of the Mass and Width of the W Boson at CDF. Book in PDF, ePub and Kindle
A precision measurement of the mass and width of the W boson is presented. The W bosons are produced in proton antiproton collisions occurring at a centre of mass energy of 1.96 TeV at the Tevatron accelerator. The data used for the analyses is collected by the Collider Detector at Fermilab (CDF) and corresponds to an average integrated luminosity of 350 pb-1 for the W width analysis for the electron and muon channels and an average integrated luminosity of 2350 pb-1 for the W mass analysis. The mass and width of the W boson is extracted by fitting to the transverse mass distribution, with the peak of the distribution being most sensitive to the mass and the tail of the distribution sensitive to the width. The W width measurement in the electron and muon channels is combined to give a final result of 2032 ± 73 MeV. The systematic uncertainty on the W mass from the recoil of the W boson against the initial state gluon radiation is discussed. A systematic study of the recoil in Z \rightarrow e+e- events where one electron is reconstructed in the central calorimeter and the other in the plug calorimeter and its effect on the W mass is presented for the first time in this thesis.
The Measurement of the W Boson Mass from CDF.
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| Publisher | : |
| Total Pages | : |
| Release | : 1994 |
| Genre | : |
| ISBN | : |
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Combination of CDF and D0 $W$-Boson Mass Measurements
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2013 |
| Genre | : |
| ISBN | : |
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Mass and Width of the W Boson
| Author | : Alan M. Button |
| Publisher | : |
| Total Pages | : 230 |
| Release | : 1999 |
| Genre | : |
| ISBN | : |
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W Mass and Properties
| Author | : Mark Lancaster |
| Publisher | : |
| Total Pages | : 3 |
| Release | : 2005 |
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Download W Mass and Properties Book in PDF, ePub and Kindle
Precise measurements of the mass and width of the W boson are sensitive to radiative corrections and can be used to place limits on new physics beyond the Standard Model and validate the consistency of the model. In particular, the W boson mass constrains the mass of the, as yet unobserved, Higgs boson and the width can be used to place limits on the existence of new particles that couple to the W. Results are presented from p{bar p} collisions recorded by the CDF and D0 experiments at the Fermilab Tevatron collider, operating at a center of mass energy of 1.96 TeV. The uncertainty on the W mass is determined to be 76 MeV by CDF and the width, by D0, to be 2011 {+-} 90 (stat.) {+-} 107 (syst.) MeV.
W Boson Mass Measurement at CDF.
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| Total Pages | : 10 |
| Release | : 2017 |
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| ISBN | : |
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This is the closeout report for the grant for experimental research at the energy frontier in high energy physics. The report describes the precise measurement of the W boson mass at the CDF experiment at Fermilab, with an uncertainty of ≈ 12 MeV, using the full dataset of ≈ 9 fb-1 collected by the experiment up to the shutdown of the Tevatron in 2011. In this analysis, the statistical and most of the experimental systematic uncertainties have been reduced by a factor of two compared to the previous measurement with 2.2 fb-1 of CDF data. This research has been the culmination of the PI's track record of producing world-leading measurements of the W boson mass from the Tevatron. The PI performed the first and only measurement to date of the W boson mass using high-rapidity leptons using the D0 endcap calorimeters in Run 1. He has led this measurement in Run 2 at CDF, publishing two world-leading measurements in 2007 and 2012 with total uncertainties of 48 MeV and 19 MeV respectively. The analysis of the final dataset is currently under internal review in CDF. Upon approval of the internal review, the result will be available for public release.
