Particle Physics at Budker INPParticle Physics at Budker INP Novosibirsk, RussiaNovosibirsk, Russia

09/10/2009ECFA meeting in

Moscow

The Institute of Nuclear Physics The Institute of Nuclear Physics

(Novosibirsk, Russia) was founded (Novosibirsk, Russia) was founded

in 1958 on the base of the headed in 1958 on the base of the headed

by academician Gersh Budker by academician Gersh Budker

Laboratory for new acceleration Laboratory for new acceleration

methods of the Institute of Atomic methods of the Institute of Atomic

Energy (Moscow) headed at that Energy (Moscow) headed at that

time by academician Igor time by academician Igor

Kurchatov.Kurchatov. Academician Gersh BudkerAcademician Gersh Budker

(1918-1977)(1918-1977)

Budker INP is the Research Center Budker INP is the Research Center

of the Russian Academy of Sciences.of the Russian Academy of Sciences.

1. Physics at Electron-Positron Colliders

2. Physics of Accelerators

3. Plasma Physics

4. Synchrotron Radiation Research

5. Accelerators-Recuperators and Powerful Free Electron Lasers

6. Electron Accelerators for Industry

7. Accelerators & Detectors for Medicine and Security

8. Theoretical Physics

9. Collaborations: -participation in physics experiments and accelerator physics

(CERN, KEK, SLAC, BNL, IHEP, PSI……) -development and supply of the unique scientific equipment

Budker Institute of Nuclear Budker Institute of Nuclear PhysicsPhysics

Research activity:Research activity:

Budker INP Staff Budker INP Staff (July, 2009)(July, 2009)

• Total staff 2772

• Scientific Labs staff (total) 1180 • Scientific researchers 400 (176 is under 40 years) • Post graduates 60• Developers-engineers in Labs 240 • Design engineers 100 • Technicians 380

• Workshop personnel 1000

• Engineers and technicians 200• Workers 800

• Institute management 150• Other 442

Budker Institute of Nuclear PhysicsBudker Institute of Nuclear PhysicsWorkshop Workshop

Workshop is very important: Workshop is very important:

•Flexible for fabrication of unique equipment for Flexible for fabrication of unique equipment for research at BINPresearch at BINP

•Fabrication of equipment for other lab’sFabrication of equipment for other lab’s including including small serial productionsmall serial production (additional money for our (additional money for our research!) research!)

• Wide Product Groups (magnets for accelerators, Wide Product Groups (magnets for accelerators, SC wigglers and undulators, vaccuum SC wigglers and undulators, vaccuum components, electron accelerator for industry and components, electron accelerator for industry and etc…..) etc…..)

Budker Institute of Nuclear PhysicsBudker Institute of Nuclear Physics

Budget

MRub Gov. part,%

2005 1031 38

2006 1167 40

2007 1236 48

2008 1371 58

2009 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

Particle Physics at Budker INPParticle Physics at Budker INP A few generations of the colliders and detectorsA few generations of the colliders and detectors

Collider 2E, Gev Detectors 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 ?

Править!

• 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

VEPP-2M Collider VEPP-2M Collider ComplexComplex

IL U3 M eVL IN A C

B -3 M2 0 0 M eVsy n ch ro -b e ta tro n

B E Pe ,e

b o o ste r– +

9 0 0 M eV

e ,e– +

V E P P -2 M

S N D

1 8 0 – 7 0 0 M eV

R .F.cav ity

S Cw ig g le r

C M D -2

e e– +co n v e rto r

e +

e –

operated 1974-2000;

Results of eResults of e++ee–– annihilation cross section annihilation cross section measurements by measurements by SNDSND and CMDand CMD-2 -2 detectors atdetectors at

VEPPVEPP-2-2MM

180pbLdt

These measurements are very important for calculation of the hadronic vacuum polarization contribution to g-2 of muon and

VEPP-2000 ColliderVEPP-2000 Collider

Status: in operation from 2009 CMD-3CMD-3

Cryogenic Magnetic Detector

SNDSNDScintillator

Neutral particles Detector

injection

Round beams, 2 x 1000 MeV

L=1x1031 cm-2 c-1 at 2E=1.0 ГэВ L=1x1032 cm-2c-1 at 2E=2.0 ГэВ

Светимoсть!

SND for VEPP-2000SND 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/separation E<450 MeV, /K separation E<1 GeV,2 –drift chamber – better tracking

Cryogenic Magnetic Detector-3

1 – vacuum chamber 2 – drift chamber3 – electromagnetic calorimeter BGO 4 – Z – chamber 5 – CMD SC solenoid

6 – electromagnetic calorimeter LXe7 – electromagnetic calorimeter CsI8 – yoke9 – VEPP-2000 solenoid

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

• 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 with spectral functions in -decays

• Measurement of the nucleons electromagnetic form factors and search for NN- resonances

• Study of e+e– -annihilation into hadrons at low energy by radiative return (ISR)

• Two-photon physics

• High order OED processes

Physics at VEPP-2000Physics at VEPP-2000

VEPP-3 and VEPP-4M Collider CVEPP-3 and VEPP-4M Collider Complexomplex

4.

Detector KEDR

ROKK-1M

Detector KEDR at VEPP-4MDetector KEDR at VEPP-4M

The luminosity of VEPP-4M is rather low than at B-factories

But some advantages: • Large energy region 2Е=211 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).

VEPP-4M and KEDR detectorVEPP-4M and KEDR detector

Resonance depolarization method at VEPP-4M

The beam energy at VEPP-4M can be measured by this method with accuracy of 5х10-7 ! (Ме /Ме=10-7)

New development of method precision improved by 10 times

Energy measurement by Compton backscatteringEnergy measurement by Compton backscattering

• VEPP-4M, 2006-09, 900-2000 MeV

Compton backscattering at VEPP-4MCompton backscattering at VEPP-4M

•A few isotopes used for detector calibration and stability check•The final calibration by resonance depolarization

•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%

The new system prepared for BES-III experiment at IHEP (Beijing)

Detector KEDR

tagging system for two photon physics

•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

Resolution for 2 invariant mass is 0.1%

Physics at KERD&VEPP-4M

• High precision measurements of particle masses:

J/, (2S), (3S), D-mesons, -lepton, (1S) (2S) (3S), Y(4S)

• Spectroscopy of cc and bb states • The measurement of R in the energy region 2E=2-7 GeV

• Two photon physic: total cross section hadrons ,

study of C-even states

_ _

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

High precision particle mass measurement with KEDR at VEPP-4M

Tau-lepton mass measurement

Novosibirsk Tay-Charm factory

Exist Injection facility VEPP-5 (will be used for VEPP-4Mand VEPP-2000)

Tunnel for the linac and the technical straight section of the factory is ready

L = 1÷2×1035 cm-2s-1Variable energy Ecm= 2 – 5 GeV

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

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

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)

Italy, Japan, Russia, Switzerland, U.S.A.

The MEG experimentApproved at PSI in 1999

Goal 10-13 (possibly 10-14 in future)

BINP contribution to MEG:•Construction (transport SC solenoid)•Data tacking•Data analysis

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!)

VEPP-3

VEPP-4M

VEPP-4

From VEP-1 to Tau-charm factory!

VEP-1 VEPP-2

VEPP-2000

Tau-charm

Udalit’!