Study of multi-muon events produced in p (p)over-bar interactions at root s=1.96 TeV
T Aaltonen, J Adelman, B Alvarez Gonzalez, S Amerio, D Amidei, A Anastassov, J Antos, G Apollinari, A Apresyan, T Arisawa, A Artikov, W Ashmanskas, P Azzurri, W Badgett, BA Barnett, V Bartsch, D Beecher, S Behari, G Bellettini, D Benjamin Show all
European Physical Journal C | SPRINGER | Published : 2010
We report the results of a study of multi-muon events produced at the Fermilab Tevatron collider and acquired with the CDF II detector using a dedicated dimuon trigger. The production cross section and kinematics of events in which both muon candidates are produced inside the beam pipe of radius 1.5 cm are successfully modeled by known processes which include heavy flavor production. In contrast, we are presently unable to fully account for the number and properties of the remaining events, in which at least one muon candidate is produced outside of the beam pipe, in terms of the same understanding of the CDF II detector, trigger, and event reconstruction. © 2010 The Author(s).
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 National Science Council of the Republic of China; the Swiss National Science Foundation; the A.P. Sloan Foundation; the Korean Science and Engineering Foundation and the Korean Research Foundation; the Particle Physics and Astronomy Research Council and the Royal Society, UK; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovacion, Spain; the European Community's Human Potential Programme; the Slovak R&D Agency; and the Academy of Finland.