| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10724963 | Physics Letters B | 2006 | 7 Pages |
Abstract
The cross section of the process e+eââÏ+ÏâÏ0 has been measured in the c.m. energy range 984-1060 MeV with the CMD-2 detector at the VEPP-2M collider. The obtained value of Br(Ïâe+eâ)Br(ÏâÏ+ÏâÏ0)=(4.51±0.16±0.11)Ã10â5 is in good agreement with the previous measurements and has the best accuracy. Analysis of the Dalitz plot was performed. The contributions of the dominant ÏâÏÏ mechanism as well as of a small direct Ïâ3Ï amplitude were determined.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
R.R. Akhmetshin, V.M. Aulchenko, V.Sh. Banzarov, L.M. Barkov, N.S. Bashtovoy, A.E. Bondar, D.V. Bondarev, A.V. Bragin, S.I. Eidelman, D.A. Epifanov, G.V. Fedotovich, N.I. Gabyshev, D.A. Gorbachev, A.A. Grebeniuk, D.N. Grigoriev, F.V. Ignatov,