Author:
Korobov A. A.,Akhmetshin R. R.,Amirkhanov A. N.,Anisenkov A. V.,Aulchenko V. M.,Banzarov V. Sh.,Bashtovoy N. S.,Berkaev D. E.,Bondar A. E.,Bragin A. V.,Eidelman S. I.,Epifanov D. A.,Epshteyn L. B.,Erofeev A. L.,Fedotovich G. V.,Gayazov S. E.,Grebenuk A. A.,Gribanov S. S.,Grigoriev D. N.,Ignatov F. V.,Ivanov V. L.,Karpov S. V.,Kasaev A. S.,Kazanin V. F.,Koop I. A.,Korobov A. A.,Kozyrev A. N.,Kozyrev E. A.,Krokovny P. P.,Kuzmenko A. E.,Kuzmin A. S.,Logashenko I. B.,Lysenko A. P.,Lukin P. A.,Mikhailov K. Yu.,Okhapkin V. S.,Otboev A. V.,Perevedentsev E. A.,Pestov Yu. N.,Popov A. S.,Razuvaev G. P.,Ruban A. A.,Ryskulov N. M.,Ryzhenenkov A. E.,Semenov A. V.,Senchenko A. I.,Shatunov Yu. M.,Shebalin V. E.,Shemyakin D. N.,Shwartz B. A.,Shwartz D. B.,Sibidanov A. L.,Solodov E. P.,Titov V. M.,Talyshev A. A.,Vorobiov A. I.,Yudin Yu. V.
Abstract
The cross section of the process e+e−→ π+π−π+π− has been measured using an integrated luminosity of 17 pb−1 collected with the CMD-3 detector in the center-of-mass energy range 650-1000 MeV. High-precision measurements of various hadronic cross sections are of great interest in relation with the problem of the muon anomalous magnetic moment g-2. This measurement can be also used to test the relation between the cross section of e+e−→ π+ π−π+ π− and the spectral function for the τ−→ π−π0π0π0 decay predicted by the conservation of vector current (CVC).