W-charge Asymmetry at CDF, Tests of Structure Functions
W-charge Asymmetry at CDF, Tests of Structure Functions

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Published: 2005

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The charge asymmetry of W-bosons produced in p[bar p] collisions has been measured using 19,039 W [yields] e[nu] and W [yields] [mu][nu] decays recorded by the CDF detector during the 1992-93 Tevatron collider run. The asymmetry is sensitive to the slope of the proton's d/u quark distribution ratio down to x

Tests of Structure Functions Using Lepton Pairs: W-charge Asymmetry at CDF
Tests of Structure Functions Using Lepton Pairs: W-charge Asymmetry at CDF

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Published: 2005

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Large asymmetry of W-bosons produced in p[bar p] collisions has been measured using 19 039 W [yields] e[nu] and W [yields] [mu][nu] decays recorded by the CDF detector during the 1992--1993 Tevatron collider run. The asymmetry is sensitive to the slope of the proton's d/u quark distribution ratio down to x

Tests of Proton Structure Functions Using Leptons at CDF and D0
Tests of Proton Structure Functions Using Leptons at CDF and D0

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Published: 1995

Total Pages: 12

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High statistics W charge asymmetry measurements at the Tevatron {bar p}p collider significantly constrain the u and d quark distributions, and specifically the slope of the d(x)/u(x) in the x range 0.007 to 0.27. The authors present measurements of lepton charge asymmetry as a function of lepton rapidity, A(y{sub l}) at (square root)s = 1.8 TeV for {vert_bar}y{sub l}{vert_bar}

Test of Structure Functions Using Lepton Pairs
Test of Structure Functions Using Lepton Pairs

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Published: 1998

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The charge asymmetry of leptons from W-bosons and the Drell-Yan cross section of massive charged lepton pairs from [gamma]*/Z-bosons produced in p{anti p} collisions are measured using 110 pb−1 of collisions taken by the Collider Detector at Fermilab (CDF) during 1992-95. The W-asymmetry measurement provides a precise constraint of the slope of the quark distribution ratio, d(x)/u(x), over the x range of 0.006 to 0.34. The Drell-Yan measurement spans the mass range of 11 to 500 GeV/c2, and QCD calculations using recent parton distribution functions are in good agreement with it.