@article{10902/28866,
year = {2013},
url = {https://hdl.handle.net/10902/28866},
abstract = {We present new measurements of the inclusive forward-backward t¯t production asymmetry, AFB, and its dependence on several properties of the t¯t system. The measurements are performed with the full Tevatron data set recorded with the CDF II detector during p¯p collisions at √s=1.96  TeV, corresponding to an integrated luminosity of 9.4  fb−1. We measure the asymmetry using the rapidity difference Δy=yt−y¯t. Parton-level results are derived, yielding an inclusive asymmetry of 0.164±0.047(stat+syst). We establish an approximately linear dependence of AFB on the top-quark pair mass Mt¯t and the rapidity difference |Δy| at detector and parton levels. Assuming the standard model, the probabilities to observe the measured values or larger for the detector-level dependencies are 7.4×10−3 and 2.2×10−3 for Mt¯t and |Δy| respectively. Lastly, we study the dependence of the asymmetry on the transverse momentum of the t¯t system at the detector level. These results are consistent with previous lower-precision measurements and provide additional quantification of the functional dependencies of the asymmetry.},
organization = {We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC).},
publisher = {American Physical Society},
publisher = {Physical Review D, 213, 87(9), 092002},
title = {Measurement of the top quark forward-backward production asymmetry and its dependence on event kinematic properties},
author = {Aaltonen, Timo Antero and Casal Laraña, Bruno and Cuevas Maestro, Francisco Javier and Gómez Gramuglio, Gervasio and Palencia Cortezón, José Enrique and Ruiz Jimeno, Alberto and Scodellaro, Luca and Vilar Cortabitarte, Rocío and Vizán García, Jesús Manuel},
}