?.?.???????

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????????????????? ???????????? ????-???????
???????????? ??? ??????? ????????


?.?.??????? ??? ???
?????????? ??????, ??? ???, 11.05.06
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1.???????????? ????????. ?????? ????? ??
?????????????? ??????? ??????. 2.???????????
???????????? ????-??????? ???????????? ???
??????? ????????. 3. ? ??????? ???????????
?????? 4.????? ????? ???????
????????? ?????????? ????? ? CERN, BNL,
GSI 5.??????????? ?? 10 15 ???. ?????????
ALICE, CBM



?????????? ??????, ??? ???, 11.05.06
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??????? ?.?
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Mapping the QCD phase diagram with heavy-ion
collisions
Lattice QCD calculations Fedor Katz, Ejiri et
al.
SIS300

net baryon density ?B ? 4 ( mT/2?h2c2)3/2 x
exp((?B-m)/T) - exp((-?B-m)/T) baryons
- antibaryons
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QCD equation of state
New generation of calculations with realistic
quark masses and for Nt6. New result (Katz) Tc
191?8 MeV
Can we put a data point on this diagram?
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???????????



1. ???????????? ? ????????????? ????? ??????
2. ?????? ?????? ( ?????????? ) ???????? ?????
??? ??????? ?????????? ?????????. 3.
???????? ???????? ???????? ??????. 4. ????????
?????????????. ?????????? ????????
????????. 5. ?????? ??????
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Direct photons in PHENIX
Phys. Rev. Lett. 94, 232301 (2005)

• No significant excess at low pT
• Expect some improvement in run4 systematic errors.

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Strangeness Enhancements
160A GeV/c
Factor ? 20 for ?
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????????????????? ?????????
J/? ????????????? ?? ?? ??????? ??
??????? ???? Dimuon spectrometer
Centrality detectors EM calorimeter (1.1lt
?lablt2.3)
2.92 lt ylablt 3.92

ZDC calorimeter (?labgt 6.3)
?cos ?CS ? lt 0.5

Multiplicity detector (1.9lt?lablt4.2) Pb-Pb 158
GeV/c
p A 400 GeV/c 2000 year Data period
Subtargets Number of J/? Target
Number of J/? 1995 7
50000
Be 38000
1996 7
190000 Al
48000 1998
1 49000
Cu 45000
2000 1 in vacuum 129000
Ag
41000

W 49000

Pb
69000

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??????????? ??????? ???????????? ????
??? pT ???????? J/? -?????????????? ??????? ?
??????? ???? (2.9-3.3) ???/c2 (2000 ???) ?????
????????? ???? ? ??????? ???????? ????? ???????
? ???????? ?????????? ????? 3, ? ???????? ???
????? DY ??????? ????????? ????????????? J/?
?? ??????????? ???????, ??????????? ?????????????
?? pT ??????? ? ????????.
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J/? suppression, standard analysis

• 3 centrality bins, defined through EZDC
• J/? nuclear absorption ? ?J/?abs 4.18 ? 0.35
  mb (from NA50 _at_ 450 GeV)
• 8 uncertainty on the rescaling to 158 GeV

Anomalous J/? suppression is present in In-In
collisions
A finer centrality binning is needed to sharpen
the picture
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Comparison with previous results
Qualitative agreement with NA50 as a function of
Npart ? new set of Pb-Pb results needed, with
reduced error bars
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NA60 J/? comparison to models
None of the models (tuned to reproduce the NA50
data and with specific predictions for In-In)
properly describes the observed suppression
pattern.
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RAA vs Npart PHENIX and NA50

• NA50 data normalized to NA50 pp point.
• Suppression level is similar in the two
  experiments, although the collision energy is 10
  times higher (200GeV in PHENIX wrt 17GeV in
  NA50)

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Comparison to theory (II)
Models that were successful in describing SPS
data fail to describe data at RHIC - too much
suppression -
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????????????? J/? ?? ??????????? ???????
ltpT2gt ? ??????????? ?? ??????????
???????
Pb-Pb 2000
??? Pb-Pb ???????????? ltpT2gt ??????? ??????, ?
????? ? ?????? ????????????? ??????? ?? ?????????

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Teff ? ??????????? ?? ????????? ???????





T(?0) ( 182)?2 ??? Tslope ( 20.16 ? 1.04) ?
10-3 ??3 Tslope(cent Pb-Pb)(8.87 ? 2.07)
10-3 ??3 R(slopes)2.27 /- 0.54
T(?0) ( 182)?2 MeV Tslope ( 20.16 ? 1.04) ?
10-3 ??3 Tslope(cent Pb-Pb)(4.42 ? 5..06)
10-3 ??3 R(slopes)4.56 /- 5.22

??? ???????? SPS ??? ???? ?????? TJ/?? ???????
?????? ? ?????? ????????? ???????. ??? ????????
??????????? Pb-Pb ???????????? ????? ?????
??????? ???????????.
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Ri (J/?i(pT)/DYigt4.2)/(J/?1(pT)/DY1gt4.2)
Pb-Pb 2000
5 Et ?????
????????? ? ???????? ??????????????? E 1 ????.
?????????? ?? ????????? ? ????????
??????????????? ????????? ????????? ??? ??????
pT , ??? ??? ?????? ?????? ? ??????????????. ???
??????????? ??????? ?????????? ?????????? ???
???? pT .
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??????????? ?? pT ??? p-A, S-U ? Pb-Pb
p-A
S-U
Pb-Pb 2000
?????? ???????- ???????? ??? pTgt2 ???/c
Et ????, ??? 5 - 40 40 - 80 80 125
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HADES - High Acceptance DiElectron Spectrometer

• Beams
• p (LH2) , C, Ar -production runs
• ?- with I0.8106/spill and 41010 N2/spil (lt5
  than needed for physics run of S262)
• Beam detectors
• Diamond detectors (START VETO) for HI
• Scintillating fibers for p,d,? beams
• Forward Hodoscope (0-80) - INR
• RICH
• Full azimuth coverage,
• Detector figure of merit N079
• Carbon mirrors (2 need to be installed)-0.5X0
• Image Processing
• Tracking system
• 3 MDC layers complete, 4 MDCIV
• remaining 2 ready at end 2005.
• Internal resolution ? 100 ?m ? anticipated mass
  mass resolution ?Mee/M?1.5 at ?/? region-
• META
• TOF, TOFINO -INR, Pre-Shower full coverage
• Image Processing

p, ?, A
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Physics programme(I) pp/dp reactions
Beam energy Processes Physics case
T lt 1.27 GeV NN threshold for ? production (end of 2006) pN?N? ?NNee- pn ?pnee- (bremsstrahlung) pd ?pN? ?pNee- Dalitz decays of baryons (trans. form-factors), electromagnetic structure of nucleon, tests of extended VDM Isospin dependence pp/pn (large effects for ?!) sensitive test for various reaction models cross sections for HI collisions (differences in model calculation by factor of 2-4 )
T ? 2.0 GeV NN threshold for r/w production pp?p?(N) ?pp?/w ?ppee off-shell vector meson production ?/w interferences vector meson coupling to baryonic resonances ? in-medium modifications complementary to pion programme S262
T 3.5 GeV (May 2006) pp ?pp?/w ?ppee reference for pA, AA, ?A - on shell w production w ??0ee- Dalitz decay (test of VDM )
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Physics programme(II) AA collisions

• in medium vector meson properties- spectral
  functions AV(Mee- ,p) double differential
  distributions, centrality dependence
• Dielectron excess observed by DLS in CaCa _at_
  1AGeV.
• Mass dependence
  mT scaling for ?_at_2AGeV gives only
  ??0.7

? ee-?(ApAT)1.06-DLS

• What are the relevant observables as nuclear
  density and/or temperature increase?
• quark picture vs. hadronic picture?

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ALICE The answer to the challenge
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ALICE Many cells everywhere

• To localise, segmenting the system in hundreds of
  millions of sensitive cells
• Surround the interaction point with detector
  enveloppes

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and a few specialized detectors

• Muons spectrometre
• Passif absorber
• B dipole
• Trajectographe
• Filter
• Trigger

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The future Facility for Antiproton an Ion
Research (FAIR)
SIS 100 Tm SIS 300 Tm U 35 AGeV p 90 GeV
Cooled antiproton beam Hadron Spectroscopy
Ion and Laser Induced Plasmas High Energy
Density in Matter
Structure of Nuclei far from Stability
Compressed Baryonic Matter
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Feasibility studies
Event generators URQMD, PLUTO Transport
GEANT3,4 via VMC
? Radiation hard Silicon pixel/strip detectors in
a magnetic dipole field ? Electron detectors
RICH TRD ECAL pion suppression up to 105 ?
Hadron identification RPC, RICH ? Measurement
of photons, p0, ?, and muons electromagn.
calorimeter (ECAL)
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?????????? 1. ??? ???????
???????? ???????? ???????? ???? ?
?????-???????? ??????? ?????????? ?????
????????????????? ?????? ? ??????? ?????????
??????? ? ??? ????????? ?????????????? ????.
2. ?????????? ????????? ????????????
????????? ?????????????? ???? ?? ?????????
??????? ????????.

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NA50 ???????????? France,
Italy, Portugal, Switzerland, Russia,
Romania, Armenia

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Thermodynamics of matter
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Mapping the QCD phase diagram with heavy-ion
collisions
Lattice QCD calculations Fedor Katz, Ejiri et
al.
SIS300

net baryon density ?B ? 4 ( mT/2?h2c2)3/2 x
exp((?B-m)/T) - exp((-?B-m)/T) baryons
- antibaryons
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Present QM conference was dominated by

• Global event characterization
• Global observables (dN/d?, HBT, fluctuations)
• Chemical and thermal Equilibrium
• Flow
• Penetrating probes
• High pT suppression
• Jets
• Charm and charmonium
• Dileptons
• Photons

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?????? ??????? ?????????
? ??????? ???????

• 1. ??????? ?????????.
• ???????? 1-?? ? 2-?? ????. ???????????
  ?????. ?????????????. ?????-???????? ??????.
  ???????? ?????????????????.
• 2. ????????? ?????????. ??????? ?? ???????
• 3. ??????????.
• 4. ??????????. ??????????? ?????????.
• 5. ?????????????? ????????? ?????????.
• 6. ?????? ????????? ?????-???????? ??????.
• ??????? ?????? ????. ????????? ????????.
• ??????? ?????????.
• 7. ????????? ????.

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QCD tells us
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The sQGP challenge
Strongly coupled EM plasmas may provide guidance
(Thoma).
sQGP could be a dense gas or a liquid. Pair
correlation function g(r) will tell.
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What happened since last QM?

• Most successful Run-4 and Run-5 at RHIC

• 87 experimental papers published
• in the refereed literature
• 30 of them in PRL

• 4 white papers
• ? a new logo was born perfect liquid

• All this new results presented in
• 25 experimental plenary talks and
• 60 experimental parallel talks

• I have the impossible task to summarize
• all of this in 40 minutes

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Jet quenching
Density of scatterings
Range of color force
Baiers plot
Emergence of away-side jet will make
determination of q easier.
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Comparison to theory (I) normal nuclear
absorption
Central arm
Muon arm
Theory Vogt nucl-th/0507027
Cold nuclear matter absorption model in agreement
with dAu Tendency to underpredict suppression
in most central AuAu and CuCu events
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????????????? J/? ?? ?????????? ?????
TJ/????? ??????? ?????????? ???????
Pb-Pb 2000
T236 ? 1 MeV
???????? ????????? ??????? T ??????, ? ?????
?????????? ????????? ??? ??????????? ???????.
????????? T ?????????? ????????? ltpT2gt ?
??????????? ?? ET
??? MT ????????????? ? ??????? ????????????????
??????? ??????? MT2K1(MT/T) ???? ????????
????????? ??????? T - ??????????? ???????????
??????? ? ?????????? ??????
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(J/?/DYgt4.2 )acc ?? pT ? 5 ET ?????


F
Pb-Pb 2000

F
Et ???? ? ??? 1. 5 - 20 2. 20 - 40 3. 40
- 70 4. 70 - 100 5. gt100


pT
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?????? 1. ?????????? ????????
?? ????????? ????????????????? ?????? 2000 ?.
??? p-A ? Pb-Pb, ?????????? ???
?????????? ?????????????????
????????. 2. ?? ????????????? J/? ??
??????????? ??????? ????????, ??? ltpT2gt
??????????? ?? ????????????? ????? ?????????
?? ????????? ???????? ? ????????? ?????????. 3.
????????????? J/? ?? ?????????? ????? ?????????,
??? ???????? ?????? (???????????
???????????) T ??? ????? ???????????
Pb-Pb ???????????? ??????????? ?? ?????
???????????. 4. ??????????? ?????????? J/? ??
??????????? ???????

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?????? ? ?????????? ? p-A 400 ???/c
??????? ?? pT , ????? ?????? ???????
(???????? ??? pTgt 2 ???/c, ? gt1) . ?
??? Pb-Pb ?????????? R(pT) ???????? ?????? ???
??????
pT , ??? ?????????? ?????? ?
?????? ?????????????. ??????????
?????????? ???????? J/? ???????????
??????????? ??? ?????? ?????????? ????????.
? ? ??????????????
Pb-Pb ????????????? ??????????? ?? pT
?????????? ??????????? ? p-A ??????
(???????? ??? pTgt 2 ???/c)-
?????????? ??????? ??????????. ? ??? ?????
??????????? Pb-Pb ??????? ?????????? ???????,
???????? ?????????? ??? ??????? pT (???
? S-U). ? ??? ????? ??????????? ???????
??????? ?????????? ??? ????
????????? pT . ??????????????
?????????? ????? ???????? ????????
??????????.

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