Measurement of the muon charge asymmetry in $pp$W+X$$$+X$ events at $s=1.96TeV$

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 Brandt, A. and Brandt, O. and Brock, R. and Fox, H. and Price, D. and Ratoff, P. N. and Ross, A. and Williams, M. R. J. (2013) Measurement of the muon charge asymmetry in $pp$W+X$$$+X$ events at $s=1.96TeV$. Physical Review D, 88 (9). ISSN 1550-7998

PDF (PhysRevD.88.091102)
PhysRevD.88.091102.pdf - Published Version

Download (359kB)


We present a measurement of the muon charge asymmetry from the decay of the W boson via W→μν using 7.3  fb-1 of integrated luminosity collected with the D0 detector at the Fermilab Tevatron Collider at √s=1.96  TeV. The muon charge asymmetry is presented in two kinematic regions in muon transverse momentum and event missing transverse energy: (pTμ>25  GeV, E̸T>25  GeV) and (pTμ>35  GeV, E̸T>35  GeV). The measured asymmetries are compared with theory predictions made using three parton distribution function sets. The data at pTμ>35  GeV, E̸T>35  GeV, and larger values of |ημ| favor an increased d(x)/u(x) ratio at higher values of x than is predicted.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D
Additional Information:
© 2013 American Physical Society
ID Code:
Deposited By:
Deposited On:
21 Nov 2013 00:03
Last Modified:
15 Jul 2020 04:14