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Transcript of 1 JINR Contribution to the CBM experiment Report at the 5 th Workshop on the Scientific Cooperation...
1
JINR Contribution to the CBM experiment
Report at the 5th Workshop on the Scientific Cooperation Between German Research Centers and JINR,
Dubna, January 17-19, 2005
A.I.Malakhov
Joint Institute for Nuclear Research, Dubna [email protected]
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Superconducting Dipole Magnet
Transition Radiation Detector (TRD)
JINR participation:
Simulation (tracking, RICH, magnetic field)
Physics
The present JINR facility NUCLOTRON could be used as a test bench for CBM detectors
Straw Transition Radiation Tracker (TRT)
Compressed Barionic Matter (CBM)
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Letter of Intent
for the Compressed Baryonic Matter Experiment
at the Future Accelerator Facility in Darmstadt
The CBM collaborationDarmstadt, January 2004
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Task Institution
Feasibility study D-Meson identification GSI Darmstadt, Czech Acad. Science Rez,Techn. Univ. Prague
Feasibility study low-mass vector meson identification via dilepton pairs
Univ. Krakow, JINR-LHE Dubna
Feasibility study charmonium identification INR Moscow
Simulations hadron identification via TOF Heidelberg Univ., Kiev Univ., NIPNE Bucharest, INR Moscow, RBI Zagreb
Simulation tools GSI Darmstadt
Tracking KIP Univ. Heidelberg, Univ. Mannheim, JINR-LHE Dubna, JINR-LIT Dubna
Silicon Pixel Detector IReS Strasbourg, Frankfurt Univ., GSI Darmstadt, RBI Zagreb, Krakow Univ.,
Silicon Strip Detector SINP Moscow State Univ., CKBM St. Petersburg, KRI St. Petersburg
R&D on RPC TOF detector system with read-out electronics LIP Coimbra, Univ. Santiago de Compostela, Univ. Heidelberg, GSI Darmstadt, NIPNE Bucharest, INR Moscow, FZR Rossendorf, IHEP Protvino, ITEP Moscow, Korea Univ. Seoul, RBI Zagreb, Univ. Krakow, Univ. Marburg
R&D on fast gaseous detectors for TRD JINR-LHE Dubna, GSI Darmstadt, Univ. Münster, PNPI St. Petersburg, NIPNE Bucharest
R&D on straw tube tracker (TRD) JINR-LPP Dubna, FZR Rossendorf
R&D on Ring Imaging Cherenkov Detector (RICH): mirror and UV detector
IHEP Protvino, GSI Darmstadt, PNPI St. Petersburg
R&D on RICH radiator gas system Pusan Nat. Univ.
Design and construction of an electromagnetic calorimeter (ECAL)
ITEP Moscow, Univ. Krakow, Univ. Frankfurt
Diamond microstrip detector GSI, Univ. Mannheim
Trigger and Data Acquisition KIP Univ. Heidelberg, Univ. Mannheim, JINR LIT Dubna, GSI Darmstadt, Univ. Bergen, KFKI Budapest, Silesia Univ. Katowice, PNPI St. Petersburg, Univ. Warsaw
Design of a superconducting dipole magnet JINR-LHE Dubna, GSI Darmstadt
Calculation of radiation doses Kiev Univ.
Modification of HADES for 8 AGeV Czech Acad. Science Rez
Delta electrons GSI Darmstadt
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Laboratory of High Energies
Leader A.I.Malakhov
Laboratory of Particle Physics
Leader V.D.Peshekhonov
Transition Radiation Detector (TRD)
Straw Transition Radiation Tracker (TRT)
Software (track and pattern reconstruction, RICH, magnetic field)
Superconducting Dipole Magnet
Physics
Simulation (Track Track finder, Track fitter)finder, Track fitter)
Laboratory of Information Technologies
Leader V.V.Ivanov
Laboratory of Theoretical Physics
Leader D.Blaschke
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DEVELOPMENT of FAST GAS DETECTORS for TRD
Yu. Zanevsky Laboratory of High Energies
Joint Institute for Nuclear Research
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Development and Construction of Transition Radiation Detector for ALICE
(JINR Participation)________________________________________________________
Collaboration: Heidelberg, GSI, Munster, Frankfurt, Dubna, Bucharest.Coordinator from JINR - Yu. Zanevsky
Main task of LHE JINR :• Development and construction of 100 Chambers for Transition Radiation Detector • Testing at a laboratory conditions and on the beam at CERN• Detector Commissioning on the beam at CERN
At blg. 40 of LHE JINR has been constructed:
■ Rooms (including 3 clean rooms ~120 m2 , class better than 10.000)■ Climate facility at clean rooms ■ Winding machine under PC control, tables, special tools e.t.c.
Main goal: e/π discrimination of > 100 (p > 1 GeV/c) Position resolution of ~ 200 μm Large area ( 700 m2, 6 layers)
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Development and Construction of Transition Radiation Detector for ALICE
(JINR Participation)________________________________________________________
Winding Machine under operation Transfer of Wire Planes on TRD chambers
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Development and Construction of Transition Radiation Detector for ALICE
(JINR Participation)________________________________________________________
Assembling of TRD chamber Testing of TRD chamber with X-ray tube
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Tests of prototypes (MWPC, GEM) / July 2004 at SIS /
_______________________________________________________
2 type of Detectors (from LHE JINR) has been tested on the beam at GSI in July 2004 with Ar/CO-2 and Xe/CO-2 gas mixture:
1) MWPC (with drift gap) 2 mm anode-cathode gap 8 mm drift gap 2 mm anode pitch 10 x 10 cm ² area PAD readout (3 x 4 mm ²)
2) GEM-3 3 mm drift gap 3 ampl. stages 10 x 10 cm ² area PAD readout (10 x 20 mm ²)
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Borisovskay Z. , Matyushevsky E., Shabunov A.
The Superconducting Dipole Magnet
Laboratory of High Energies Joint Institute for Nuclear Research
P.G.Akishin Laboratory of Information Technologies
Joint Institute for Nuclear Research
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Superconducting Dipole Magnet
Large Aperture 1x1 m2
The field integral 1 TmThe weight of the iron yoke is 67000 kg
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Track finder for STS
with conformal mappingO. Rogachevsky
Laboratory of High Energies Joint Institute for Nuclear Research
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V.Peshekhonov
Laboratory of Particle Physics
Joint Institute for Nuclear Research
CBM STRAW TRANSITION RADIATION DETECTOR/TRACKER (TRT)
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CBM STRAW TRT
V.Peshekhonov 2 03.10.2004
Target-Detector distance:
1-st module - 4 m
2-d - 6 m
3-d - 8 m
Angle Acceptance – from 50 mrad to 500 mrad
Sensitive area X(horizontal) x Y(vertical) for 1-st, 2-d, 3-d module:
~ (5.8 x 3.9) m2; (8.7 x 5.8) m2; (11.6 x 7.7) m2
Space Resolution - < 200 mkm
Rejection of electrons from pions ~ 300
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Software (track and pattern reconstruction, RICH,
magnetic field)
V.V. Ivanov
Laboratory of Information Technologies
Joint Institute for Nuclear Research
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3D track recognition by the track-following method (G.Ososkov, A.Airiyan, A.Lebedev, S.Lebedev)
Accurate momentum restoration based on orthogonal polynomial sets (E.P.Akishina, V.V.Ivanov, E.I.Litvinenko)
Application of Kalman filter for momentum restoration (S.A.Baginyan, V.V.Ivanov, P.V.Zrelov)
Polynomial approximation in a problem of accurate momenta reconstruction (P.G.Akishin)
RICH ring guidance by the Hough transform approach charged particle tracing through inhomogeneous (B.Kostenko, G.Ososkov, A.Solovjev)
Looking for the STS “secondary” tracks (V.Ivanov, G.Ososkov, A.Airiyan)
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D.Blaschke
General topics which can be covered by Laboratory of Theoretical Physics in CBM
program
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1. Hadron masses/decays in chiral quark/qluon models (M.Ivanov, M.Volkov)
2. Hadron-hadron cross sections including D-meson properties and J/ψ breakup (D.Blaschke, M.Ivanov, N.Kochelev)
3. Hadrons in hot, dencse matter including in-medium mesons (M.Volkov, V.Yudichev, D.Blaschke, E.Kuraev, A.Radzhabov)
4. Equation of state and QCD phase diagram (D.Blaschke, V.Toneev, V.Yudichev, Khvorostukhin)
5. Kinetics and hydrodynamics of heavy-ion collisions with application to analysis of various hadronic and photon/lepton observables (V.Toneev, V.Skokov)
6. Relativistic effects in hadron-nucleus scattering (S.Bondarenko, V.Burov, V.Chabanov)