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Status of the project NICA/MPD at JINR A.N.Sissakian, A.S.Sorin

Scientific Workshop dedicated to the centenary of V.I.Veksler's birth and the 50th anniversary of launching the Synchrophasotron JINR, Dubna, October 10 - 12, 2007



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FAIR GSI, NICA JINR


NICA goals and physics problems
Study of in-medium properties of hadrons and nuclear matter equation of state, including a search for possible signs of deconfinement and/or chiral symmetry restoration phase transitions and QCD critical endpoint in the region of s NN=4-9 GeV by means of careful scanning in beam energy and centrality of excitation functions for the first stage Multiplicity and global characteristics of identified hadrons including multi-strange particles Fluctuations in multiplicity and transverse momenta Directed and elliptic flows for various hadrons HBT and particle correlations the second stage
Electromagnetic probes (photons and dileptons)


Required parameters The following basic initial parameters have been accepted in designing physical installation: Kinetic energy of each colliding beam 2.5 A GeV The setup covers solid angle close to 4 Average luminosity of colliding beams 1в10^27 cm-2s-1 Total cross section of heavy ion interaction (U+U) 7 b The mean multiplicity of charged particles in a central collision 600 5% Fraction of central collisions Fraction of events with strange particles 3% Fraction of events with lepton pairs in domain of meson 10^-4 The following interaction rate - Frequency of interaction Total number of interactions per is being collected for 50% of the A number of central interactions A number of central interactions A number of central interactions of meson per year characterizes the setup capability: 7в10^3 /s year assuming the statistics calendar time 1в10^11 per year 5в10^9 with strange particles per year 3в10^8 with lepton pairs in the domain 5в10^5

From these estimations it is possible to conclude that luminosity 10^27 cm-2s-1 may be sufficient for the decision of the above formulated physical program.


E (GeV) AGS BNL Au+Au 1985 -1990 2 В 11

S1/2 (GeV) 2.3 В 4.7

(shut down)

(shut down) (shut down)
AGS

SPS CERN Pb+Pb 2003 2002 2000 2000 1994 - 2000 RHIC BNL Au+Au 2000 - ?

20 30 40 80 160 2.1·10
4

6.3 7.6 8.3 12.3 17.4 200



JINR NUCLOTRON
Project parameters: maximum energy 5 GeV/nucl. for nuclei with ~ 200.


Round Table Discussion

Searching for the mixed phase of strongly interacting matter at the JINR Nuclotron
July 7 - 9, 2005

Program Talks

Organizing Committee Photographs

Research Program & Expert's Report

http://theor.jinr.ru/meetings/2005/roundtable/


Round Table Discussion II Searching for the mixed phase of strongly interacting matter at the JINR Nuclotron: Nuclotron facility development JINR, Dubna, October 6-7, 2006

http://theor.jinr.ru/meetings/2006/roundtable/


http://theor.jinr.ru/meetings/2006/roundtable/


PAC for Particle Physics, 26 Meetings, 23-24 Nov. 2006






Key experiments to understand the fundamental nature of matter

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"Project NICA" NICA - Nuclotron-based Ion Collider fAcility
and MultiPurpose Detector (NICA / MPD)
..
Committee of Plenipotentiaries, March 22- 23, 2007


Status of the NICA/MPD project and first-priority tasks for 2007 A.N.Sissakian, A.S.Sorin, V.D.Kekelidze

Programme Advisory Committee for Particle Physics 27 meeting, June 28-29 2007


Status of the NICA / MPD project
V.Kekelidze, A.Sorin for NICA Collaboration Introduction Physics motivation New Basic facility - Collider NICA - Nuclotron-M ­ as the first stage - major milestones Experimental tasks Conceptual design of the experimental Set-Up ­ MPD Organizational aspects Summary

102 session of the Scientific Council, JINR, Dubna, September 27 - 28, 2007








NICA/MPD project
Nuclotron-based Ion Collider fAcility and MultiPurpose Detector
Intense beams from protons to Uranium with maximal colliding energy s=9 GeV (Elab~40 AGeV) and L=1027cm-2s-1

Full performance will be reached in 2013

Cost saving factors: ·No new buildings, no additional power lines.
· No extra heat, water cooling power.




NICA Cost Estimates ($M)
KRION + HV "platform" Injector (IHEP design) Booster Collider 0.25 10 8 2 x 10

Total ~ 40 ___________________________ Infrastructure ~ 12


Required MPD parameters
· |y|<2 acceptance and 2 continuous azimuthal coverage · High tracking efficiency · Adequate track length for tracking, momentum measurement and particle identification · Momentum resolution p/p<0.02 for 0.1< p<2 GeV/c · Two-track resolution providing a momentum difference resolution of few MeV/c for HBT correlation studies · Determination of the primary vertex better than 200m for high momentum resolution to be able to identify particles from the primary interaction · Determination of secondary vertices for detecting the decay of strange particles such as , 0s, ±, · The fraction of registered vertex pions > 75%

MPD cost estimate
Silicon vertex detector Time projection chamber TOF Wall TOF Barrel EM calorimeter barrel

($M) 4.8 5.0 4.5 3.0 3.5

~ 25


Round Table Discussion III Searching for the mixed phase of strongly interacting QCD matter at the NICA/MPD JINR (Dubna) January, 2008


RИsumИ

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The main work is still ahead!
THANK YOU FOR ATTENTION!