Recent results from the VEPP2000 e+e- Collider

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Abstract

The CMD-3 and SND detectors are taking data at the VEPP-2000 e+e collider (Budker INP, Novosibirsk, Russia). The main goal of experiments is the measurement of the cross-sections and dynamics of the exclusive modes of e+e annihilation to hadrons. In particular, these results provide an important input for calculations of the hadronic contribution to the muon anomalous magnetic moment. Since start operation in 2011 few energy scans have been performed in the center-of-mass (c.m.) energy range from 0.32 to 2.0 GeV. The collected data sample with about 200 pb1 per detector exceeds those in all previous experiments for this region. Here we present the present status of data analysis, including a precise measurement of the e+e → π+π reaction as well as other hadron final states with up to seven pions or states including two kaons or neutral pions.

Original languageEnglish
Title of host publicationProceedings of the 54th Rencontres de Moriond - 2019 QCD and High Energy Interactions
EditorsEtienne Auge, Jacques Dumarchez, Jean Tran Thanh Van
PublisherARISF
Pages167-170
Number of pages4
ISBN (Electronic)9791096879113
Publication statusPublished - 2019
Event54th Rencontres de Moriond on QCD and High Energy Interactions 2019 - La Thuile, Italy
Duration: 23 Mar 201930 Mar 2019

Publication series

NameProceedings of the 54th Rencontres de Moriond - 2019 QCD and High Energy Interactions

Conference

Conference54th Rencontres de Moriond on QCD and High Energy Interactions 2019
Country/TerritoryItaly
CityLa Thuile
Period23.03.201930.03.2019

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