Electroweak physics: measurement of the forward-backward charge asymmetry of electron-positron pairs in p anti-p collisions at s**(1/2) = 1.96 tev

Acosta, D. ; Collaboration, The CDF

Lawrence Berkeley National Laboratory

关键词: Partons;    D Quarks;    43 Particle Accelerators;    Fermilab Collider Detector;    Distribution Functions;   

DOI  :  10.2172/842934
RP-ID  :  LBNL--58148
RP-ID  :  AC03-76SF00098
RP-ID  :  842934

美国|英语

来源: UNT Digital Library

【 摘 要 】

We report a measurement of the forward-backward charge asymmetry of electrons from W boson decays in p{bar p} collisions at {radical}s = 1.96 TeV using a data sample of 170 pb{sup -1} collected by the Collider Detector at Fermilab. The asymmetry is measured as a function of electron rapidity and transverse energy and provides new input on the momentum fraction dependence of the u and d quark parton distribution functions within the proton.