Target luminosity and luminosity integral achievement at VEPP-2000 collider
Year: 2025
Type: conference-paper
Abstract: VEPP-2000 electron-positron collider operating in the beam energy range of 150-1000 MeV is the only machine originally designed to exploit Round Beams Concept which results in significant beam-beam limit enhancement. After long shutdown for injection chain upgrade VEPP-2000 resumed data taking with luminosity limited only by beam-beam effects. Thanks to extensive and thorough machine tuning the luminosity achieved L = 9 * 10^+31 cm-2s-1 at E=900 MeV that is above the design value. The stable operation resulted as well in high average data taking rate of 2-4 pb-1/day at top energies. In 2024 VEPP-2000 achieved the symbolic long-term milestone: integrated luminosity recorded by each of two detectors, SND and CMD-3, exceeded 1fb-1. This value was the target data volume written in the project physical program. Recorded data allows to study physics of light quarks with unprecedent precision. Recently published by CMD-3 collaboration e+e- -> pi+pi- cross-section measurement already changed the vision of muon anomalous magnetic dipole moment mystery - possible window to physics beyond the SM.
Source: JACOW
Authors: Rogovsky,Yury, Kasaev,Alexey, Murasev,Anatoliy, Chistiakov,Danil, Berkaev,Dmitriy, Shwartz,Dmitry, Perevedentsev,Evgeny, Karpov,Genadiy, Kurkin,Gregory, Koop,Ivan, Fomin,Lev, Timoshenko,Maksim, Belikov,Oleg, Motygin,Sergei, Semenov,Sergej, Shatunov,Yuri, Eminov,Emil
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7104248784
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