Status and prospects of VEPP-2000 electron-positron collider

• Published in: Physics of particles and nuclei letters Vol. 11; no. 5; pp. 651 - 655
• Main Authors: Rogovsky, Yu. A., Berkaev, D. E., Zemlyansky, I. M., Zharinov, Yu. M., Kasaev, A. S., Koop, I. A., Kyrpotin, A. N., Lysenko, A. P., Perevedentsev, E. A., Prosvetov, V. P., Romanov, A. L., Senchenko, A. I., Skrinsky, A. N., Shatunov, P. Yu, Shatunov, Yu. M., Shwartz, D. B.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.09.2014
• Subjects: Particle and Nuclear Physics; Physics; Physics and Astronomy; Physics and Technique of Accelerators; Collision Point; Bunch Length; Nucleus Letter; Quadrupole Lens; Injection Part
• ISSN: 1547-4771; 1531-8567
• DOI: 10.1134/S1547477114050252

High energy physics experiments were started at VEPP-2000 at the end of 2010; the third experimental run was finished in July 2013. The last run was devoted to the energy range 160–510 MeV in a beam. Compton backscattering energy measurements were used for the regular energy calibration of the VEPP-2000, together with resonance depolarization and NMR methods. The conception of the round colliding beam lattice along with precise orbit and lattice correction yielded a record high peak luminosity of 1.2 × 10 31 cm −2 s −1 at 510 MeV and an average luminosity of 0.9 × 10 31 cm −2 s −1 per run. A total betatron tune shift of 0.174 was achieved at 392.5 MeV. This corresponds to the beam-beam parameter ξ = 0.125 in terms of the collision point. The injection system is currently modernized to allow injection of particles at the VEPP-2000 energy maximum and the elimination of the existing lack of positrons.