Author: Senchenko, A.I.
Paper Title Page
TUPAB002 Round Colliding Beams: Successful Operation Experience 1326
 
  • D.B. Shwartz, O.V. Belikov, D.E. Berkaev, D.B. Burenkov, V.S. Denisov, A.S. Kasaev, A.N. Kirpotin, S.A. Kladov, I. Koop, A.A. Krasnov, A.V. Kupurzhanov, G.Y. Kurkin, M.A. Lyalin, A.P. Lysenko, S.V. Motygin, E. Perevedentsev, V.P. Prosvetov, Yu.A. Rogovsky, A.M. Semenov, A.I. Senchenko, L.E. Serdakov, D.N. Shatilov, P.Yu. Shatunov, Y.M. Shatunov, M.V. Timoshenko, I.M. Zemlyansky, Yu.M. Zharinov
    BINP SB RAS, Novosibirsk, Russia
  • S.A. Kladov, I. Koop, A.A. Krasnov, M.A. Lyalin, E. Perevedentsev, Yu.A. Rogovsky, Y.M. Shatunov, D.B. Shwartz
    NSU, Novosibirsk, Russia
 
  VEPP-2000 elec­tron-positron col­lider op­er­at­ing in the beam en­ergy range of 150-1000 MeV is the only ma­chine orig­i­nally de­signed for and suc­cess­fully ex­ploit­ing Round Beams Con­cept. After in­jec­tion chain up­grade in­clud­ing link to the new BINP in­jec­tion com­plex VEPP-2000 pro­ceeded with data tak­ing since 2017 with lu­mi­nos­ity lim­ited only by beam-beam ef­fects. At the low en­er­gies (300-600 MeV/beam) the novel tech­nique of ef­fec­tive emit­tance con­trolled in­crease by weak co­her­ent beam shak­ing al­lowed to sup­press the lim­it­ing flip-flop ef­fect and re­sulted in ad­di­tional lu­mi­nos­ity gain fac­tor of 4. The av­er­aged de­liv­ered lu­mi­nos­ity at the omega-me­son pro­duc­tion en­ergy (2*391 MeV) achieved L = 2*1031cm-2s−1/IP. At the top en­er­gies above nu­cleon-an­ti­nu­cleon pro­duc­tion thresh­old the sta­ble op­er­a­tion with lu­mi­nos­ity of L = 5*1031cm-2s−1/IP re­sulted in high av­er­age data tak­ing rate of 2 pb-1/day in 2020.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB002  
About • paper received ※ 20 May 2021       paper accepted ※ 07 June 2021       issue date ※ 31 August 2021  
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