Aaltonen, T;
Amerio, S;
Amidei, D;
Anastassov, A;
Annovi, A;
Antos, J;
Apollinari, G;
... Zucchellia, S; + view all
(2021)
Measurement of the charge asymmetry of electrons from the decays of W bosons produced in p(p)over-bar collisions at root s=1.96 TeV.
Physical Review D
, 104
(9)
, Article 092002. 10.1103/PhysRevD.104.092002.
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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.
| Type: | Article |
|---|---|
| Title: | Measurement of the charge asymmetry of electrons from the decays of W bosons produced in p(p)over-bar collisions at root s=1.96 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevD.104.092002 |
| Publisher version: | https://doi.org/10.1103/PhysRevD.104.092002 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. |
| Keywords: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, Physics, Particles & Fields, Physics, QED RADIATIVE-CORRECTIONS, UNIVERSAL MONTE-CARLO, TO-BACK JETS, TRANSVERSE-MOMENTUM, CROSS-SECTIONS, CDF, UPGRADE, PHOTOS, CALORIMETER, PERFORMANCE |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10166842 |
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