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Particle Physics at Budker INP Novosibirsk, Russia

Particle Physics at Budker INP Novosibirsk, Russia. 09/10/2009 ECFA meeting in Moscow. Budker INP is the Research Center of the Russian Academy of Sciences.

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Particle Physics at Budker INP Novosibirsk, Russia

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  1. Particle Physics at Budker INP Novosibirsk, Russia 09/10/2009 ECFA meeting in Moscow

  2. Budker INP is the Research Center of the Russian Academy of Sciences. The Institute of Nuclear Physics (Novosibirsk, Russia) was founded in 1958 on the base of the headed by academician Gersh Budker Laboratory for new acceleration methods of the Institute of Atomic Energy (Moscow) headed at that time by academician Igor Kurchatov. Academician Gersh Budker (1918-1977)

  3. Budker Institute of Nuclear Physics Research activity: • Physics at Electron-Positron Colliders • Physics of Accelerators • Plasma Physics • Synchrotron Radiation Research • Accelerators-Recuperators andPowerful Free Electron Lasers • Electron Accelerators for Industry • Accelerators & Detectors for Medicine and Security • Theoretical Physics • Collaborations: • -participation in physics experiments and accelerator physics (CERN, KEK, SLAC, BNL, IHEP, PSI……) • -development and supply of the unique scientific equipment

  4. Budker INP Staff (July, 2009) • Total staff2772 • Scientific Labs staff (total)1180 • Scientific researchers 400 (176 is under 40 years) • Post graduates60 • Developers-engineers in Labs 240 • Design engineers100 • Technicians380 • Workshop personnel1000 • Engineersand technicians200 • Workers 800 • Institute management150 • Other 442

  5. Budker Institute of Nuclear Physics Workshop • Workshop is very important: • Flexible for fabrication of unique equipment for • research at BINP • Fabrication of equipment for other lab’sincluding • small serial production(additional money for our • research!) • Wide Product Groups (magnets for accelerators, • SC wigglers and undulators, vaccuum • components, electron accelerator for industry and • etc…..)

  6. Budker Institute of Nuclear Physics Budget MRub Gov. part,% • 1031 38 • 1167 40 • 1236 48 • 1371 58 • 1341 67 • Three new facilities have been built during last 10 years (VEPP-2000, • Free Electron Laser, Injection Complex VEPP-5) without special Government • funding. • But budget is critical point: • -we have big problem with operation of existing facilities (no special fund!!!) • -no possibility to build new Tau-charm factory without government support

  7. Править! Particle Physics at Budker INP A few generations of the colliders and detectors Collider 2E, GevDetectors Operation VEP-1 (e-e-) 0.32 2 detectors 1965-67 VEPP-2 1.4 3 detectors 1967-72 VEPP-3 2.0 2 detectors 1972- (buster and Nucl. Phys) VEPP-4 11.0 OLYA, MD-1 1980-85 VEPP-2M 1.4 OLYA, ND, CMD 1974-2000 SND, CMD-2 VEPP-4M 11.0 KEDR 2000- VEPP-2000 2.0 SND, CMD-3 2009 Tau-Charm ?

  8. VEPP-2M Collider Complex operated 1974-2000; • Lmax=4x1030cm–2sec–1 at E0=510 MeV; Total integrated luminosity 80 pb–1. • Main results: • - Development of the resonant depolarization technique for precise measurements of • particles masses (from 1975) • - Detailed study of, ,and-mesons(precise measurements of parameters, rare • decays and etc) • Data analysis is not completed yet

  9. Results of e+e– annihilation cross section measurements by SNDand CMD-2 detectors atVEPP-2M These measurements are very important for calculation of the hadronic vacuum polarization contribution to g-2 of muon and 

  10. Светимoсть! VEPP-2000 ColliderStatus: in operation from 2009 Round beams, 2 x 1000 MeV CMD-3 Cryogenic Magnetic Detector injection SND Scintillator Neutral particles Detector L=1x1031 cm-2 c-1 at 2E=1.0 ГэВ L=1x1032 cm-2c-1 at 2E=2.0 ГэВ

  11. SND for VEPP-2000 1 – beam pipe, 2 – tracking system, 3 – aerogel, 4 – NaI(Tl) crystals, 5 – phototriodes, 6 – muon absorber, 7–9 – muon detector, 10 – focusing solenoid. Advantages for VEPP-2000: 1- cherenkov counter, n=1.05, 1.13 – e/pseparation E<450 MeV, p/K separation E<1 GeV, 2 –drift chamber – better tracking

  12. CryogenicMagneticDetector-3 1 – vacuum chamber 2 – drift chamber 3 – electromagnetic calorimeter BGO 4 – Z–chamber 5 – CMD SC solenoid 6 – electromagnetic calorimeter LXe 7 – electromagnetic calorimeterCsI 8 – yoke 9 – VEPP-2000 solenoid

  13. CMD-3 is ready to move at VEPP-2000 (sept 2009)

  14. Physics at VEPP-2000 • Study of hadronic cross sections e+e–→2h, 3h, 4h …, h= ,K,,… • Precision measurement of R=(e+e– → hadrons)/ (e+e–→+–) • Study of light vector mesons excitations: ’, ’’, ’, ’,.. • CVC testing by comparison of the energy dependence of e+e– → hadr. (I=1) cross sections withspectral functions int -decays • Measurement of the nucleons electromagnetic form factors andsearch forNN- resonances • Study ofe+e–-annihilation into hadrons at low energyby radiative return (ISR) • Two-photon physics • High order OED processes

  15. 4. ROKK-1M Detector KEDR VEPP-3 and VEPP-4M Collider Complex

  16. Detector KEDR at VEPP-4M

  17. VEPP-4M and KEDR detector • The luminosity of VEPP-4M is rather low than at B-factories • But some advantages: • Large energy region 2Е=211 ГэВ • Technology of high precision measurement of the beam energy (concentration on high precision particle mass measurement). • Detector KEDR equipped by LKr calorimeter with high energy and space resolution. • High resolution tagging system (two-photon physics).

  18. Resonance depolarization method at VEPP-4M New development of method precision improved by 10 times The beam energy at VEPP-4M can be measured by this method with accuracy of 5х10-7 ! (Ме /Ме=10-7)

  19. Energy measurement by Compton backscattering • VEPP-4M, 2006-09, 900-2000 MeV

  20. Compton backscattering at VEPP-4M • The precision of energy measurement • is 30-50 KeV ( 1keV for RD!) • BUT! • No polarized beams needed • Energy measurements during • experiments (in case of any jumps RD • used) • Energy spread can be measured with • precision of 5% • A few isotopes used for detector calibration and stability check • The final calibration by resonance depolarization The new system prepared for BES-III experiment at IHEP (Beijing)

  21. Detector KEDRtagging system for two photon physics Resolution for 2 invariant mass is 0.1% • Only one place where total cross section of hadrons can be measured • reliably • High energy resolution photon beam (<0.5%) is available: • -Calibration of the detectors • -Study of non-linear QED processes: Delbruk scattering and Photon splitting

  22. Physics at KERD&VEPP-4M • High precision measurements of particle masses: J/, (2S), (3S), D-mesons, -lepton,(1S) (2S) (3S), Y(4S) • Spectroscopy ofccandbbstates • The measurement of R in the energy region 2E=2-7 GeV • Two photon physic: total cross section hadrons , study of C-even states _ _

  23. High precision particle mass measurements with KEDR at VEPP-4M

  24. High precision particle mass measurement with KEDR at VEPP-4M Tau-lepton mass measurement

  25. Exist Injection facility VEPP-5 (will be used for VEPP-4M and VEPP-2000) Tunnel for the linac and the technical straight section of the factory is ready Novosibirsk Tay-Charm factory L = 1÷2×1035 cm-2s-1Variable energy Ecm= 2 – 5 GeV

  26. Budker INP collaboration(particle physics) • CERN: ATLAS, LHCb • KEK: BELLE* • SLAC: BaBar* • Super-B* • PSI: MEG • BNL: G-2 • IHEP (Beijing):BES-III(energy measurements and new tau mass measurement) * Bondar’s presentation

  27. BINP contribution in ATLAS • New designs for LAr EM end-cap calorimeter and presampler have been proposed and accepted by collaboration • Construction: -test beam facility -LAr EM end-cap calorimeter -presampler (full responsibility) -EM end-assembly table (full responsibility) -big muon MDT wheels (full responsibility) -bus-bars for all ATLAS magnet ((full responsibility) • Simulation -EM end-cap calorimeter (full responsibility) -calorimeter calibration • Computing -GRID software development -ATLAS front-end computing development • Commissioning • Data analysis -search for Myorano neutrino -tau-lepton physics

  28. BINP contribution in LHb • Beam lost monitor • Computing • Commissioning • Data analysis LHb is very attractive for BINP’s physicists next step in B-physics after BELLE and BaBar (Bondar presentation)

  29. Italy, Japan, Russia, Switzerland, U.S.A. The MEG experiment Approved at PSI in 1999 Goal 10-13 (possibly 10-14 in future) • BINP contribution to MEG: • Construction (transport SC solenoid) • Data tacking • Data analysis

  30. Conclusion • A few generations of colliders and detectors successfully operated at Budker INP with well known contribution to particle physics • VEPP-4M and VEPP-2000 with 3 detectors are in operation at present interesting physics in the coming years • Budker INP successfully collaborates in a few outstanding experiments outside • Super Tau-Charm is a future (but official approval is necessary!)

  31. From VEP-1 to Tau-charm factory! Udalit’! VEPP-2 VEPP-3 VEP-1 VEPP-2000 VEPP-4M VEPP-4 Tau-charm

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