1995
DOI: 10.1103/physrevd.52.2624
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Measurement of the ratio σB(pp¯Weν)/σB(pp¯Z0ee) inpp¯collisions at √s=1800 GeV

Abstract: We present a n analysis of data from pp collisions a t a center-of-mass energy of , , G = 1800 GeV. A measurement is made of the ratio R r u B ( p p + W + ev)/uB(pp -+ Z O + e e ) . The data represent 19.6 pb-' collected by the Collider Detector a t Fermilab during the 1992-1993 collider run of the Fermilab Tevatron. We find R = 10.90 * 0.32(stat)*O.Z9(syst), and from this value we extract a measurement of the W t ev branching ratio r ( W + e v ) / r ( W ) = 0.1094 dz 0.0033(stat)~0.0031(syst). From this branc… Show more

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Cited by 45 publications
(18 citation statements)
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“…The ratio of energy in the hadronic calorimeter to that in the electromagnetic calorimeter, E had =E EM , must be less than 0.1. A lateral shower discriminator quantifying the difference between the observed and expected energies in the two electron towers is defined as [58] L shr ¼ 0.14…”
Section: B Electron Selectionmentioning
confidence: 99%
“…The ratio of energy in the hadronic calorimeter to that in the electromagnetic calorimeter, E had =E EM , must be less than 0.1. A lateral shower discriminator quantifying the difference between the observed and expected energies in the two electron towers is defined as [58] L shr ¼ 0.14…”
Section: B Electron Selectionmentioning
confidence: 99%
“…We summarize here the observables described by CDF and D0 in their respective publications [8][9][10][11][12][13][14]. The directly measured W boson mass and width [8][9][10][11] correspond to the pole mass M W and pole width ÿ W in the Breit-Wigner line shape with energy-dependent width, as defined by the differential cross section…”
Section: Tevatron Observablesmentioning
confidence: 99%
“…The published CDF [12] and D0 [13,14] where Run 1a refers to the 1992 -93 data and Run 1b refers to the 1994 -95 data. The uncertainties are summarized in Table VII. We combine the D0 results from Run 1a and Run 1b taking the systematics due to choice of PDF (0.3%), the uncertainty in M W (0.1%), the uncertainty in the boson p T spectrum (0.1%), clustering algorithm dependence (0.2%), physics generator issues (0.3%), electroweak radiative corrections (1.0%) [19], and Drell-Yan background (0.1%), as correlated error components, to obtain a total correlated uncertainty of 1.1%.…”
Section: A Combination Of R Measurementsmentioning
confidence: 99%
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“…9.5 GeV are retained. To help identify electrons and reject hadronic background [13], we consider the longitudinal and lateral shower profiles, require matching in energy and lateral position between the shower and the electron candidate track, and demand that the preshower signal be consistent with that expected for an electron. Events with electrons from W and Z bosons are rejected by requiring E e T , 20 GeV and missing transverse energy E ͞ T , 20 GeV.…”
mentioning
confidence: 99%