Recent Results from CMD-3 Detector at VEPP-2000 e~+e~- Collider

摘要

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 0.32 to 2.0 GeV. Preliminary results of the analysis of various hadronic cross sections, in particular, e~+e~- → π~+π~-, π~+π~-π~0, K_LK_S, K~+K~-, ηγ, 3(π~+π~-), 2(π~+π~-π~0), K~+K~-π~+π~-, K~+K~-η, K~+K~-π~0, ηπ~+π~-, ωπ~+π~- and ω → π~0e~+e~- are presented. The processes with multihadron final states have several intermediate states which have to be taken into account to correctly describe the angular and invariant mass distributions, as well as cross section energy dependence.