Measurement of the charge asymmetry of electrons from the decays of W bosons produced in p¯p collisions at √ s = 1.96 TeV
Abstract
At the Fermilab Tevatron proton-antiproton (pp¯) collider, high-mass electron-neutrino (eν) pairs are produced predominantly in the process pp¯→W(→eν)+X. The asymmetry of the electron and positron yield as a function of their pseudorapidity constrain the slope of the ratio of the u- to d-quark parton distributions versus the fraction of the proton momentum carried by the quarks. This paper reports on the measurement of the electron-charge asymmetry using the full data set recorded by the Collider Detector at Fermilab in 2001-2011 and corresponding to 9.1 fb-1 of integrated luminosity. The measurement significantly improves the precision of the Tevatron constraints on the parton-distribution functions of the proton. Numerical tables of the measurement are provided. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000517647Publication status
publishedExternal links
Journal / series
Physical Review DVolume
Pages / Article No.
Publisher
American Physical SocietyOrganisational unit
03904 - Wallny, Rainer / Wallny, Rainer
03904 - Wallny, Rainer / Wallny, Rainer
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