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ISSN - 15474771, EISSN - 15318567, Physics of Particles and Nuclei Letters, 2013, vol. 11, p. 651-655

Status and prospects of VEPP-2000 electron-positron collider

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.

© 2014, Pleiades Publishing, Ltd. 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 × 1031 cm−2 s−1 at 510 MeV and an average luminosity of 0.9 × 1031 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.