Measurements of W charge asymmetry

2015/10/06 by J. L. Holzbauer, Holzbauer, J. L.
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.1510.01716

Proceedings for the 2015 European Physical Society Conference on High Energy Physics (EPS-HEP 2015)

arxiv created 2015/10/06 · arxiv updated 2019/08/14

Abstract

We discuss W boson and lepton charge asymmetry measurements from W decays in the electron channel, which were made using 9.7 fb^-1 of RunII data collected by the D0 detector at the Fermilab Tevatron Collider. The electron charge asymmetry is presented as a function of pseudo-rapidity out to |η| ≤ 3.2, in five symmetric and asymmetric kinematic bins of electron transverse momentum and the missing transverse energy of the event. We also give the W charge asymmetry as a function of W boson rapidity. The asymmetries are compared with next-to-leading order perturbative quantum chromodynamics calculations. These charge asymmetry measurements will allow more accurate determinations of the proton parton distribution functions and are the most precise to date.

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