Measurement of the electron charge asymmetry in pp¯→W+X→eν+X decays in pp¯ collisions at √s = 1.96 TeV

0455630 - FZÚ 2016 RIV US eng J - Journal Article
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … Total 364 authors
Measurement of the electron charge asymmetry in pp¯→W+X→eν+X decays in pp¯ collisions at √s = 1.96 TeV.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 91, č. 3 (2015), "032007-1"-"032007-26". ISSN 1550-7998
Institutional support: RVO:68378271
Keywords : D0 * quantum chromodynamics * Batavia TEVATRON Coll * p anti-p --> W * W --> electron neutrino * 1960 GeV-cms
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 4.506, year: 2015

We present a measurement of the electron charge asymmetry in pp¯→W+X→eν+X events at a center-of-mass energy of 1.96 TeV, using data corresponding to 9.7  fb−1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider. The asymmetry is measured as a function of the electron pseudorapidity and is presented in five kinematic bins based on the electron transverse energy and the missing transverse energy in the event. The measured asymmetry is compared with next-to-leading-order predictions in perturbative quantum chromodynamics and provides accurate information for the determination of parton distribution functions of the proton. This is the most precise lepton charge asymmetry measurement to date.
Permanent Link: http://hdl.handle.net/11104/0256257