Hungarian research activities in high energy heavy ion collisions
--- Progress report, 2005 ---
Péter LévaiKFKI RMKI, Budapest
NUPECC meetingDebrecen, 24 June 2005
Main research aims:
Equation of state for nuclear matter in wide T and density region
Subnuclear degrees of freedom (q,g) their collective behaviour (QGP,QAP,…)
Hadron properties in hot dense matter mass, width, cross sections
Exotic particle production pentaquark, strangelets, …
Astrophysical aspects nuclear reactions in matter at finite T
Human resources in Hungary:
MTA RMKI, Research Institute for Particle and Nuclear Physics, Budapest Dept. of Particle Physics (14) Dept. of Theoretical Physics (6)
ELTE, Eötvös Loránd University Dept. of Atomic Physics (7) Dept. of Theoretical Physics (2) PhD School on High Energy Phys. (6)
DE, Debrecen University Dept. of Experimental Physics (5) Dept. of Theoretical Physics (2) PhD School on High Energy Phys. (3)
MTA ATOMKI, Debrecen (3) Sum: 45-50
Accelerators in use:
Hungarian accelerators are low energy equip.: RMKI – Van den Graaf acc. ATOMKI – Van den Graaf acc. However: Excellent for radiation tests of detector parts
Hungary is member of the CERN in Geneva Virtual Research Institute for High Energy Particle and Nuclear Physics
Hungarian teams are working in/on different accelerators: BNL RHIC, MSU NSCL, GSI SIS, GSI FAIR
Accelerators in use:
1. NSCL, East Lansing, USA E_beam = 100-250 A MeV
2. GSI SIS, Darmstadt, Germany E_beam = 500-1500 AMeV
3. CERN SPS, Geneva, Switzerland E_beam = 20 – 158 AGeV [s1/2 = 4 – 20 AGeV]
4. BNL RHIC, Brookhaven, USA s1/2 = 20 – 200 AGeV
Accelerators under construction:
1. GSI/FAIR, Darmstadt, Germany E_beam = 2 – 40 AGeV [s1/2 = 0.5 – 6 AGeV]
2. CERN LHC, Geneva, Switzerland s1/2 = 200 – 5500 AGeV
NSCL project: Coulomb dissociation of neutron reach nucleus
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The MONA detector at NSCL with the whole detector setup:
Eötvös University: Kiss Á., Horváth Á., Deák F.MTA RMKI: Seres Z.
The MONA detector at NSCL:
The phase structure of the nuclear/quark matter
GSI/SIS project: nuclear matter in high density, high temperature state
E_beam = 0.5 – 1.5 AGeV
FOPI Collaboration:Fodor Z, Kecskemeti J., Seres Z. (exp.)Wolf Gy. (theory)
The phase structure of the nuclear/quark matter
The critical endpoint - lattice results (Z. Fodor, S. Katz)
“Trajectories” (3 fluid hydro)
Hadron gas EOS
V.Toneev, Y. Ivanov et al.nucl-th/0309008
SIS 100 Tm
SIS 300 Tm
Structure of Nuclei far from Stability
cooled antiproton beam:Hadron Spectroscopy
Compressed Baryonic Matter
The future Facility for Antiproton an Ion Research (FAIR)
Ion and Laser Induced Plasmas:
High Energy Density in Matter
low-energy antiproton beam:antihydrogen
Primary beams:1012 /s 238U28+ 1-2 AGeV4·1013/s Protons 90 GeV1010/s U 35 AGeV (Ni 45 AGeV)
Secondary beams:rare isotopes 1-2 AGeVantiprotons up to 30 GeV
Mapping the QCD phase diagram with heavy-ion collisions
Critical endpoint:Lattice-QCD shows it.Can we see it inreal experiments ?
SIS100/300
?
CBM physics topics and observables
Color superconductivity precursor effects ?
In-medium modifications of hadrons onset of chiral symmetry restoration at high B
measure: , , e+e- open charm (D mesons)
Strangeness in matter (strange matter?) enhanced strangeness production ?
measure: K, , , ,
Indications for deconfinement at high B anomalous charmonium suppression ?
measure: J/, D
Critical point event-by-event fluctuations
Experimental challenges
107 Au+Au reactions/sec (beam intensities up to 109 ions/sec, 1 % interaction target)
determination of (displaced) vertices with high resolution ( 30 m)
identification of electrons and hadrons
Central Au+Au collision at 25 AGeV:URQMD + GEANT4
160 p 400 -
400 + 44 K+ 13 K-
The CBM Experiment
Radiation hard Silicon (pixel/strip) Tracking System in a magnetic dipole field
Electron detectors: RICH & TRD & ECAL: pion suppression better 104
Hadron identification: TOF-RPC
Measurement of photons, π, η, and muons: electromagn. calorimeter (ECAL)
High speed data acquisition and trigger system
The phase structure of the nuclear/quark matter
First hint of the QGPat CERN SPS
NA49 data analysis continues
NA49
BNL RHIC accelerator: Au+Au at s1/2=20-200 AGeV
RHIC PHENIXDetector
T. Csörgő, ...Á. Kiss, ...P. Raics, ...
The LHC at CERN: Hungarian Participation in the ALICE and CMS heavy ion projects
ALICE Data-Acquisition System
HLT Farm
H-RORC H-RORC
FEP FEP
D-RORC D-RORC
LDC LDC
D-RORC D-RORC
LDC LDC
DIU
DIU
DIU
DIU
DIU
DIU
DIU
DIU
SIU
SIU
SIU
SIU
Event Building Network
Readout Electronics
Detector
D-RORC D-RORC
LDC LDC
DIU
DIU
SIU
SIU
Readout Electronics
Detector
DIU
SIU
DIU
SIU
Source Interface Unit
Duplex, multimode opticalfiber
Destination Interface Unit
DAQ Readout Receiver Card
Local Data Concentrator
Detector Data Link
GDCGDC GDCGlobal Data Collector
123
DD
Ls
262
DD
Ls
10 D
DLs
HMPID LAYOUT
muon armside
teams involved in the project:Bari, CERN, INR-Moscow, RBI-Zagreb
RMKI : Letter of Intent
array of seven RICH detectors (each ~1.5 x 1.7 m2 )
1 < p < 3 GeV/c -K2 < p < 5 GeV/c protons
PID RANGE
VHMPID: TWO STAGES TIC
CaF2 window
C4F10CF4
Window less !
C4F10
3< p <9 NΠ ,NK+p
9< p <16 NΠ+K ,Np
p> 16 NΠ+K+p
CF4
5< p <16 NΠ ,NK+p
16< p <30 NΠ+K ,Np
p > 30 NΠ+K+p
9<p<16 NΠ , NK , Np16<p<30 NΠ+K , Np+ Identification
- IdentificationIndirect identificationCross-checked
Hungarian Participation in the CMS Heavy Ion Project – F. Sikler, D. Barna, D. Varga, …
Particle identification at CMS in Pb+Pb collisions
RMKI
LHC GRID for computing:
Summary:
Accelerators in a wideenergy region until 2020.
Active Hungarianparticipation in construction anddata analysis
Very important to find:
- Continuous funding- IT background in Hungary- Young students to continue