Journal article
Measurement of the inclusive leptonic asymmetry in top-quark pairs that decay to two charged leptons at CDF
T Aaltonen, S Amerio, D Amidei, A Anastassov, A Annovi, J Antos, G Apollinari, JA Appel, T Arisawa, A Artikov, J Asaadi, W Ashmanskas, B Auerbach, A Aurisano, F Azfar, W Badgett, T Bae, A Barbaro-Galtieri, VE Barnes, BA Barnett Show all
Physical Review Letters | Published : 2014
Abstract
We measure the inclusive forward-backward asymmetry of the charged-lepton pseudorapidities from top-quark pairs produced in proton-antiproton collisions and decaying to final states that contain two charged leptons (electrons or muons). The data are collected with the Collider Detector at Fermilab and correspond to an integrated luminosity of 9.1fb-1. We measure the leptonic forward-backward asymmetry, AFB, to be 0.072±0.060 and the leptonic pair forward-backward asymmetry, AFB, to be 0.076±0.082. The measured values can be compared with the standard model predictions of AFB=0.038±0.003 and AFB=0.048±0.004, respectively. Additionally, we combine the AFB result with a previous determination f..
View full abstractGrants
Awarded by U.S. Department of Energy
Funding Acknowledgements
We thank the Fermilab staff and the technical staffs of theparticipating 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 fur 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, United Kingdom; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; the Australian Research Council (ARC); and the EU community Marie Curie Fellowship Contract No. 302103.