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

Abazov, V.M. and Abbott, B. and Acharya, B.S. and Adams, M. and Adams, T. and Agnew, J.P. and Alexeev, G.D. and Alkhazov, G. and Alton, A. and Askew, A. and Atkins, S. and Augsten, K. and Avila, C. and Badaud, F. and Bagby, L. and Baldin, B. and Bandurin, D.V. and Banerjee, S. and Barberis, E. and Baringer, P. and Bartlett, J.F. and Bassler, U. and Bazterra, V. and Bean, A. and Begalli, M. and Bellantoni, L. and Beri, S.B. and Bernardi, G. and Bernhard, R. and Bertram, I. and Besanifmmode çelse çon, M. and Beuselinck, R. and Bhat, P.C. and Bhatia, S. and Bhatnagar, V. and Blazey, G. and Blessing, S. and Bloom, K. and Boehnlein, A. and Boline, D. and Boos, E.E. and Borissov, G. and Borysova, M. and Brandt, A. and Fox, H. and Johnson, E. and Price, D. and Ratoff, P.N. and Ross, A. and Williams, M.R.J. (2015) Measurement of the electron charge asymmetry in pp¯→W+X→eν+X decays in pp¯ collisions at s√=1.96  TeV. Physical Review D, 91 (3). ISSN 1550-7998

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D
Additional Information:
© 2015 American Physical Society
ID Code:
73724
Deposited By:
Deposited On:
18 Jun 2015 05:42
Refereed?:
Yes
Published?:
Published
Last Modified:
07 Jul 2020 03:46