Total cross section of the process e+e−→π+π−π+π− in the c.m. energy range 980–1380 MeV

Autor: I. Logashenko, A.S. Zaitsev, B.I. Khazin, V.A. Sidorov, Fedor Ignatov, P. Krokovny, Alexander Valishev, A. Baratt, Igor Nesterenko, Yu. M. Shatunov, P.A. Lukin, D. Epifanov, A.V. Bragin, A.S. Kuzmin, E.A. Perevedentsev, N. Gabyshev, A. I. Milstein, A.A. Polunin, L.M. Barkov, D.V. Bondarev, A.E. Bondar, S.V. Karpov, G.V. Fedotovitch, D.A. Gorbachev, I.G. Snopkov, J. A. Thompson, D.N. Grigoriev, R.R. Akhmetshin, A.L. Sibidanov, A.S. Popov, V.Sh. Banzarov, V.M. Aulchenko, A.V. Otboev, A. P. Lysenko, Yu.V. Yudin, S.I. Eidelman, K.Yu. Mikhailov, V.S. Okhapkin, E. P. Solodov, A.A. Ruban, S.I. Redin, N.S. Bashtovoy, Vassili Kazanin, N.M. Ryskulov, I. A. Koop, A.N. Skrinsky, B.A. Shwartz, S.G. Zverev, A.A. Grebeniuk, A.G. Shamov, N.I. Root
Rok vydání: 2004
Předmět:
Zdroj: Physics Letters B. 595:101-108
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2004.05.056
Popis: The e+e- -> pi+pi-pi+pi- cross section has been measured using 5.8/pb of integrated luminosity collected with the CMD-2 detector at the VEPP-2M collider. Analysis of the data with a refined efficiency determination and use of both three- and four-track events allowed doubling of a data sample and reduction of systematic errors to 5-7%.
Comment: 13 pages, 5 figures, submitted to Phys. Lett. B
Databáze: OpenAIRE