Journal of University of Science and Technology of China ›› 2016, Vol. 46 ›› Issue (4): 259-271.DOI: 10.3969/j.issn.0253-2778.2016.04.001

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Overview of the CMD-3 results at the VEPP-2000 e+e- collider

FEDOTOVICH G.V.   

  1. 1.Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia; 2.Novosibirsk State University, Novosibirsk 630090, Russia; 3.Novosibirsk State Technical University, Novosibirsk 630092, Russia; 4.Falkiner High Energy Physics Department, School of Physics, The University of Sydney, New South Wales 2006, Australia
  • Received:2015-11-30 Revised:2016-04-20 Online:2016-04-30 Published:2016-04-30
  • Contact: FEDOTOVICH G.V.

Abstract: The CMD-3 detector has been taking data since December 2010 at the VEPP-2000 electron-positron collider. The collected data sample corresponds to about 60 inverse picobarn of integrated luminosity in the c.m. energy range from 032 up to 2 GeV. Preliminary results of the analysis of various hadronic cross sections, in particular, e+e-→π+π-, π+π-π0, KLKS, K+K-, ηγ, 3(π+π-), 2(π+π-π0), K+K-π+π-, K+K-η, K+K-π0, ηπ+π-, ωπ+π- and ω→π0e+e- are presented. The processes with multihadron final states have several intermediate states which must be taken into account to correctly describe the angular and invariant mass distributions as well as cross section energy dependence.

Key words: hadrons, signal/background separation, cross section