Measurement of the leptonic asymmetry in ttbar events produced in ppbar collisions at sqrt(s)=1.96 TeV
(2013) Physical Review. D, Particles, Fields, Gravitation and Cosmology — Vol. 88, n° 7, p. 072003 [12 pages] (2013)
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- et. al.
- Abstract
- We measure the asymmetry in the charge-weighted rapidity of the lepton in semileptonic ttbar decays recorded with the CDF II detector using the full Tevatron Run II sample, corresponding to an integrated luminosity of 9.4/fb. A parametrization of the asymmetry as a function of the charge-weighted rapidity is used to correct for the finite acceptance of the detector and recover the production-level asymmetry. The result of afb(lep) = 0.094 +0.032 -0.029 is to be compared to the standard model next-to-leading-order prediction of afb(lep) = 0.038 +-0.003.
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Citations
Aaltonen, T., Vizan Garcia, J. M., The CDF Collaboration, & et al. (2013). Measurement of the leptonic asymmetry in ttbar events produced in ppbar collisions at sqrt(s)=1.96 TeV. Physical Review. D, Particles, Fields, Gravitation and Cosmology, 88(7), 072003 [12 pages]. https://doi.org/10.1103/PhysRevD.88.072003 (Original work published 2013)