Round Colliding Beams at Vepp-2000 with Extreme Tuneshifts
| Autor: | Shwartz, Dmitry, Anashin, Vadim, Belikov, Oleg, Berkaev, Dmitriy, Gorchakov, Konstantin, Kasaev, Alexey, Kirpotin, Alexander, Koop, Ivan, Krasnov, Alexander, Kurkin, Grigory, Lysenko, Alexander, Motygin, Sergey, Perevedentsev, Evgeny, Prosvetov, Vasiliy, Rabusov, Dmitrii, Rogovsky, Yury, Semenov, Alexey, Senchenko, Alexander, Shatilov, Dmitry, Shatunov, Petr, Shatunov, Yuri, Shubina, Olga, Timoshenko, Maxim, Zemlyansky, Ilya, Zharinov, Yuri |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| DOI: | 10.18429/jacow-eefact2018-moyba01 |
| Popis: | VEPP-2000 is the only electron-positron collider operating with round beams that allow to enhance beam-beam limit. VEPP-2000 with SND and CMD-3 detectors carried out two successful data-taking runs after new BINP injection complex was commissioned. The 2016/2017 run was dedicated to high energy range (640-1000 MeV per beam) while the 2017/2018 run was focused at 275-600 MeV/beam energies. With sufficient positron production rate and upgraded full-energy booster the collider luminosity was limited by beam-beam effects, namely flip-flop effect. Thorough machine tuning together with new ideas introduced to suppress flip-flop allowed to achieve high beam-beam tuneshift and bunch-by-bunch luminosity values at specific beam energies. The achieved luminosity increased 2-5 times in a whole energy range in comparison to phase-1 operation (2010-2013). Proceedings of the 62th ICFA ABDW on High Luminosity Circular e$^+$e$^-$ Colliders, eeFACT2018, Hong Kong, China |
| Databáze: | OpenAIRE |
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