MPD Experiment (Multi Purpose Detector)

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MPD Experiment(Multi Purpose Detector)

• V.Kekelidze

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Content

• Introduction
• MPD Collaboration
• MPD CDR
• Working Groups activity
• Time schedule
• Conclusion

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Introduction

• Project NICA/MPD is dedicated to
• study of hot dense baryonic matter
• and
• development of the home accelerator facility
• providing relativistic heavy ions polarized
  beams
• all these allow to start a new strategic course
  of JINR
• towards the leading role in the relevant fields
• of high energy physics

• Project is initiated led by A.Sissakian
  A.Sorin

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Introduction

• A conceptual design of MPD is developed for
• a study of hadronic matter in various states
• mixed phase / phase transition
• search for critical end-point (triple point ?)
• other extreme states

• The MPD will be operated in heavy ion collisions
• over atomic mass range A1-197
• at the energy up to vSNN 11 GeV/u (for Au79)

The design average luminosity L 1027 cm2/s
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Physics tasks

• Yield spectra of particles (charged,
  neutrals, strange)
• Study of the K/p (strangeness to entropy) ratio
• Anisotropic collective flow
• Femtoscopy (momentum correlations)
• e-m probes
• P (CP) - asymmetry

Other studies dense cold matter
(?)
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MPD Collaboration

• The MPD Collaboration
• Joint Institute for Nuclear Research
• Institute for Nuclear Research, RAS, RF
• Bogolyubov Institute for Theoretical Physics,
  NAS, Ukraine
• Nuclear Physics Institute of MSU, RF
• Institute Theoretical Experimental Physics, RF
• St.Petersburg State University, RF
• Institute of Applied Physics, AS, Moldova
• Institute for Nuclear Reseach Nuclear Energy
  BAS, Sofia, Bulgaria
• Institute for Scintillation Materials, Kharkov,
  Ukraine
• State Enterprise Scientific Technology
• Research Institute for Apparatus construction,
  Kharkov, Ukraine
• Particle Physics Center of Belarussia State
  University

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Progress of the MPD project preparation

• The first MPD concept was presented in LoI
• issued in February 2008
• - it is now modified

• The first version of MPD CDR was issued
• in June 2009
• Now the version 0.6
• is available
• It will be developed further until
• mid of 2010

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Contents
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3D view of the MPD (conceptual design)
3 stages of putting into operation
2-nd stage IT,EC-subdetectors
Forward spectrometer-B
3-d stage F-spectrometers (optional ?)
1-st stage barrel part (TPC, Ecal, TOF) ZDC,
BBC, S-SC,
SC Solenoid
Toroid
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CD Dimensions
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CD ?-regions
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Energy Scan at Hermetic conditions
CD parts in ?-regions
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11 Working group

• Solenoid magnet - V.Borisov
  et. al.
• TPC prototyping - Yu.Zanevski et. al.
• ECal - I.Tyapkin, A.Olchevsky et.al.
• TOF - V.Golovatyuk et.al.
• Straw wheels - V.Peshekhonov et.al.
• ZCal - A.Kurepin et.al.
• CPC - Yu.Kiryushin et.al.
• FFD - V.Yurevich et.al.
• BBC - R.Zulkarneev et.al.
• DAQ - V.Slepnev, S.Bazylev et.al.
• IT - Yu.Murin, V.Nikitin et.al.

• The CBM-MPD SST consortium
• GSI - JINR IHEP -
• in IT silicon module development
• is well progressing

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New approach in technology
TPC construction -
Straw Wheels Design

• New electronics
• providing the rate up 6 kHz
• Max transparency (low X0)
• of end cap structure

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Neutral kaon Hyperon detection
V0 reconstruction
Neutral kaon Lambda decays invariant mass
reconstruction
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Charged Particle identification
TPC (ionization) TPCTOF (mass reconstruction)
TPC using ionization
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Cathode Pad Chamber tracker
GEM chambers developed in cooperation with
INFN colleagues are now considered as possible
End Cap trackers
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Integration and services
Solenoid ECal
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Timetable of the MPD works
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MPD competitive complimentary to

• running experiments
• STAR, Phenix at RHIC (BNL)
• NA49/NA61 at SPS (CERN)
• HADES at SIS-18 (GSI)
• ALICE at LHC (CERN)
• in preparation
• CBM at SIs100/300 (GSI)

• MPD advantages
• optimal energy range for max baryonic density
• close to 4 pi geometry
• homogeneous acceptance resolution functions
  versus measured scanned parameters
• (kinematics, b, energy etc.)

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Conclusions

• Physics motivation competitiveness are well
  proven
• by the White Book Round Table -4
• The MPD design RD are progressing well
• the first version of the CDR is available
• The Working Groups are working towards
• the first prototypes to be ready by the end of
  2010
• The MPD collaboration is permanently growing
• New members are welcome
• Especially appreciated continuation of
• fruitful cooperation with Italian colleagues

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Thank you
"all steps of learning should be sought from
nature"
Leon Battista Alberti
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Spare
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Mean particle multiplicity

• UrQMD, AuAu collision blt3 fm

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CDR development

• Responsibilities
• Physics coordination - Sisakian A.,
  Sorin A.,Toneev V.
• Technical coordinator -
  Golovatyuk V.
• Software, MC tracking coordinator -
  Rogachevsky O.

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TPC typical particle identification (STAR)
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TPC new approach
TPC in GEANT4 event reconstruction
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TPC Read-Out electronics requirement and design
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Main hyperon decay modes for IT TPC