The History and Lessons of the Hagedorn Model

Size: px
Start display at page:

Download "The History and Lessons of the Hagedorn Model"

Transcription

1 The History and Lessons of the Hagedorn Model K.A.Bugaev Bogolyubov ITP, Kiev, Ukraine in collaboration with J.B.Ellio", L.W. Phair and L.G.More"o 1

2 Outline: What T do we see in A+A and elementary particle reactions? Do these T signal PT? A bit of history: Stat. Bootstrap Model; MIT Bag Model... Problems with GCE. MCE:Properties of Hagedorn resonances = Perfect Thermostats and Particle Reservoirs Open Questions and Conclusions 2

3 This Talk: Transition between Partonic World: Deconfinement, Chiral Symmetry Restoration, Color S-Conductivity... Hadronic World: Pairing (S-Conductive), Shape Transitions, Nuclear Liquid-Gas Transition T c 18.1 MeV ρ c 0.53 ρ 0 p c 0.41 MeV/fm 3 3

4 Temperatures in A+A Reactions Lattice QCD at 0 baryonic density: transition T = 170 +/- 10 MeV, F.Karsch, Nucl.Phys.Proc.Suppl. 83(2000) Chemical Freeze-out at highest SPS and all RHIC energies T = 170 +/- 10 MeV : G.D.Yen, M.I.Gorenstein, PRC 59 (1999), P.Braun-Munzinger et al PLB 465 (1999) This T shows that hadronic composition of a created matter (including decay of resonances!) does not change while system expands and cools down. Remarkably, T = Const while s grows by 12 times! 4

5 Early Hadronization Temperature in A+A Collisions Remarkably, at highest SPS and all RHIC energies it is also T = 170 +/- 10 MeV! This T evidences that momentum spectra of some hadrons are frozen since the moment of their formation! Necessary conditions: heavy hadrons, small cross-sections with other hadrons, no low lying resonances with pions! T* (MeV) K! + p (+) # # " $ + $ % ' + ' % D J /& & m (GeV) No fit, just data Lines: T = T + m v2 2 Predictions for ψ and D K.A.B. et al., PL B 523 (2001) 5

6 Momentum Spectra at CERN SPS! J/" " transverse momentum spectra indicate: T = 170+/-10 MeV Is their hadronization T! An elaborate Blast Wave approximation was used to fit data M.I. Gorenstein, K.A.B., M. Gaździcki, Phys. Rev. Lett. 88 (2002) !2 Pb + Pb at 158 A GeV Pb + Pb at 158 A GeV QGP! J/" " FREEZE!OUT dn/(m T dm T ) (a.u.) 10!4 10!6 10!8!!! + T (MeV) # EXPANSION # 10!10 10!12 J/" " m T!m (GeV/c 2 ) $ FREEZE!OUT ! v T 6

7 m T -Spectra at RHIC s NN = 130GeV ± φ, Ω. transverse momentum spectra and emission volume τ H RH 2 show: T = 170+/-5 MeV is their hadronization T! K.A.B., M. Gazdzicki, M.I. Gorenstein, PRC 68 (2003): χ 2 /ndf = 0.46 λ Ω = 1.09 ± 0.06, y max T = 0.74 ± 0.09, τ H R 2 H = 275 ± 70 fm3 /c RHIC low p T high p T low p T high p T dn/(m T dm T dy) (GeV!2 ) 10!2 10!4 10!6 "!!!/100 T * (MeV) RHIC SPS 10! m T!m (GeV) "! J/# # m (GeV) φ data: STAR, Phys. Rev. C (R) (2002) ; Ω ± data: G. van Buren [STAR], talk at QM2002. predictions for J/ψ, ψ 7

8 Evident Explanation for A+A reactions For 0 baryonic charge the Particle Ratios (chemical freeze-out) are frozen since hadronization of QGP at T = 170+/-10 MeV. For 0 baryonic charge the kinetic freeze out of some hadrons ( φ, J/ψ, ψ mesons, Ω. hyperons) occurs at their hadronization from QGP at same T! Surprisingly, similar values of T are seen in el. particle collisions! 8

9 Hadronization in Elementary Particle Collisions Stat. Hadronization Model: T = 175+/-15 MeV F.Becattini,A.Ferroni, Acta. Phys. Polon. B 35 (2004) %./012345/6423%7%(8*+, #-" #""!-" %9 : ;!! : ; %;%; %* : *! %;%;!!""!" "!"!!" #!" $! %&!'# %()*+,! 9

10 In wide Kaon Inverse Slopes in Elementary Particle Collisions s range T = 180 +/-20 MeV, M.Kliemant, B.Lungwitz, M.Gazdzicki, PRC 69 (2004) (Open symbols) About the same T is for pions and nucleons T (MeV) K A+A data is a Step, inverse slopes are modified due to transverse expansion M.Gorenstein,M.Gazdzicki,K.A.B., PLB 567 (2003) p+p (p): 0 K K S + s NN A+A: NA49 AGS RHIC 2 10 (GeV) 10

11 Problem in our understanding Most of data from A+A collisions are explained by transition to/from QGP, but: Why T values in El. Particle collisions are nearly the same? Is there QGP formed? Why don t we see it? Do Const T values in El. Particle collisions signal a phase transition? Surprisingly, ALL these temperatures are VERY close to the Hagedorn one!!! Can we relate the hadron mass spectrum and PT? 11

12 There is gap in our understanding of A+A and h+h reactions! A+A data h+h, e+e data 12

13 13

14 Statistical Bootstrap Model 13

15 Statistical Bootstrap Model The first evidence for ρ(e) = C e αe density of states was found numerically in 1958 having 15 particles only! Result was not understood until a model was formulated in 1963 Model predicted: entropy S = α E energy G. Fast and R. Hagedorn, Nuovo Cimento 27 (1963) 208 Then: T = 1/α = Const leads to the following density of states: ρ(e) = C e S = C e αe i.e. exponentially growing spectrum! R. Hagedorn, Suppl. Nuovo Cimento 3 (1965) 147 It was heresy and Weisskopf forbade to publish it as CERN preprint! But 1964 data confirmed an exponential form. 14

16 Exponential Mass Spectrum of Heavy Hadrons It showed the existence of a limiting temperature (Hagedorn temperature) for hadrons! => New physics! The grand canonical pressure for such density of states exists ONLY below p(t ) = T 0 d m ρ(m) N d 3 k m 2 +k 2 (2π) 3 e T T H 170 MeV = T 0 d m m 3 N { } d 3 k (2π) 3 e m T H In 1975 Collins and Perry, PRL34 (1975), interpreted the m2 +k 2 Hagedorn temperature as a Phase Transition temperature to quarks and gluons! T 15

17 Hagedorn Spectrum Follows from Stat.Bootstrap Model, S.Frautschi, 1971 Hadrons are built from hadrons Veneziano Model, K.Huang,S.Weinberg, 1970 Used in string models M.I.T. Bag Model, J.Kapusta, 1981 Hadrons are quark-gluon bags dn/dm Hadron mass spectrum PDG But experimentally it is not seen ! " ", K N # $ % & m (GeV) 16

18 ...Hagedorn Spectrum is seen, but not where it is supposed to be! Consider the integral of the mass spectrum N exp (m) = i g i Θ(m m i ), It is exponential for 1 GeV< m< 2.5 GeV! Above 2.5 GeV??? 17

19 Hagedron Spectrum and Bag Model Bag Model is a foundation of our phenomenology. It gave a first evidence that transition to Partonic World is a phase transition. Resonances are small bags of QGP. How does it explain Hagedorn spectrum with Const T? Consider a single heavy bag of 0 baryonic charge in vacuum. 0 external pressure fixes the temperature (g is # d.o.f): p = g π2 90 T H 4 B = 0 T H = Then entropy of the bag is S = ε(t H)V T H [ 90 gπ 2B [ ] Mass T H ρ(mass) = exp [S] = exp ] 1 4 [ ] Mass T H 18

20 Everything looks fine, BUT... Example #1: 1-d Harmonic Oscillator For 1-d Harmonic Oscillator with energy & in contact with Hagedorn resonance (just exponential spectrum for simplicity). Total energy is E. K.A.B.et al, Europhys. Lett. 76 (2006) 402 The microcanonical probability of state & is: P( ε) = ρ( E ε) = exp E ε T Η = exp E T exp ε T Η Η Exponent is Grand canonical! With fixed T! ln P(ε) E slope = 1 T H ε Average value of & is E T ε = T H 1 H exp E T H ( ) 1 For E : ε T H 19

21 Example #2: An Ideal Vapor coupled to Hagedorn resonance Consider microcanonical partition of N particles of ( ) ( mass m and kin. energy &. The total level density is P( E,ε) = ρ H ( E ε)ρ iv ( ε) = 3 V N mε 2 N E mn ε N! 3 exp 2 N 2π T! [ [] ] Η Exponent is Grand canonical! With fixed T! The most probable energy partition is lnp ε = 3N 2ε 1 T Η = 0 ε N = 3 2 T Η T H is the sole temperature characterizing the system: A Hagedorn-like system is a perfect thermostat! 20

22 Intermediate Conclusion: For Hagedorn resonances the Grand canonical ensemble with T other than Hagedorn T does not make any sense! Because it is equivalent to bring in contact 2 thermostats with different T 21

23 Example with Explicit Thermostat: Export/import of heat does not change T! T = T c = 273K or 0 T 273K? S = S 0 + ΔQ T = S 0 + E T 0 ( ) = e S = e S 0 + ρ E Is T_o just a parameter? Then add heat E to system with other T: ( ) = deρ E Z T ( )e E T = T T 0 T 0 T es 0 According to this logic, thermostat can have ANY T <T_o! E T 0 22

24 Why In Previous Works There Was an Upper Temperature? Because they used canonical and grand canonical ensembles which are NOT equivalent to MCE! Since the Hagedorn resonance is a perfect thermostat, the transform to (grand)canonical ensemble with other T does not make ANY SENSE! Z Can d E ρ 0 e E T H E T = ρ 0 T H T T H T it exists for T < T H, but we know that two thermostats of different temperatures CANNOT BE IN EQUILIBRIUM! 23

25 Example #3: An Ideal Particle Reservoir If, in addition, particles are generated by the Hagedorn resonance, their concentration is volume independent! ρ Η (E) lnp N = m + ln V V T Η N mt Η 2π 3 2 = 0 N V = mt 3 2 Η m exp 2π T Η ideal vapor ρ iv particle mass = m volume = V particle number = N energy = ε Remarkable result because it mean saturation between gas of particles and Hagedorn thermostat! 24

26 Important Finding! Volume independent concentration of vapor means: for increasing volume of system gas particles will be evaporated from Hagedorn resonance (till it vanishes); by decreasing volume we will absorb gas particles to Hagedorn resonance! Compare to ordinary water! Literally, it is a liquid (Hagedorn resonance) in equilibrium with its vapor! ρ H (E) 25

27 The Story so far... Anything in contact with a Hagedorn thermostat acquires the Hagedorn temperature. If particles (e.g. pions) can be created from a Hagedorn thermostat, they will form a saturated vapor at fixed (Hagedorn) temperature. If different particles (i.e. of different masses m) are created, they will be in chemical equilibrium. Because of these properties the radiant Hagedorn resonance should be similar to a compound nucleus (same spectra and branching ratios), but at fixed T. 26

28 The role of the lower mass cut-off So far we ignored that for light hadrons the [ ] spectrum is not exponential. Also translational d.o.f. of the Hagedorn thermostat were ignored. For a single Hagedorn thermostat ( a = const ): ρ H (m H ) = exp[m H /T H ](m o /m H ) a for m H m o The mass cut-off: m o T H From an analysis by W. Broniowski et. al., hep-ph/ m o < 2 GeV. For a single Hagedorn thermostat: δ ln P δ m H = 1 T H + ( 3 2 a) 1 m H 3(N+1) 2 E kin = 0 T (m H ) 2 E kin 3(N + 1) = T H 1 + ( 3 2 a) T H m H. 27

29 N-dependence and Kinematic Limit ( For such N the maximum of microcanonical partition exists. Otherwise, for N N kin B m H E ) E [mo T H a] T (m o ) m T (m o ) m H m o. N > NB kin, 1 T = T o (N) 2(E mn m o) 3(N+1). Hagedorn resonance does not have sufficient mass to keep equilibrium T/T H a = 0 a = 3 N B kin (a = 0) N B kin (a = 3) A typical behavior (E = 30m) N B 28

30 N-dependence and Kinematic Limit ( For such N the maximum of microcanonical partition exists. Otherwise, for N N kin B m H E ) E [mo T H a] T (m o ) m T (m o ) m H m o. N > NB kin, T = T o (N) 2(E mn m o) 3(N+1). Hagedorn resonance does not have sufficient mass to keep equilibrium T/T H 1 For a > 1.5 Hagedorn T is not a limiting one! a = 0 a = 3 N B kin (a = 0) N B kin (a = 3) A typical behavior (E = 30m) N B 28

31 Inverse Slopes The microcanonical partition can be cast For m + 2 H +Q2 d N NB kin P = V ρ H (m + 3 H ) Q (2π) 3 e T (m + H ) E [ e [ T ] (m + H ) d 3 ] m p 2 +p N 2 V g N! (2π) 3 e T (m + H ). For N > N kin B one has to replace T (m + H ) T o(n) and m + H m o Inverse slope of momentum distribution is a temperature! Lower mass cut-off does not affect our results much. In N kin B vicinity there may exist % effect on T 29

32 How to observe it? In vacuum a Hagedorn thermostat radiates hadrons. For slow radiation the pressure due to radiation is small ( 2-3 % of Bag pressure). Thus, measuring energy and volume (HBT) for vanishing baryon number, one can find the # of d.o.f. g: ε = g π2 30 T 4 H + B p = g π2 90 T 4 H B 0 ε 1.10 ± 0.26 Gev/fm 3 ρ Η (E) g 23.5 ± 6 There was an attempt by Purdue group to measure energy density in el. particle collisions. See T.Alexopoulos et al, PLB 528 (2002) 30

33 How to observe it? In vacuum a Hagedorn thermostat radiates hadrons. For slow radiation the pressure due to radiation is small ( 2-3 % of Bag pressure). Thus, measuring energy and volume (HBT) for vanishing baryon number, one can find the # of d.o.f. g: ε = g π2 30 T 4 H + B p = g π2 90 T 4 H B 0 ε 1.10 ± 0.26 Gev/fm 3 g 23.5 ± 6 There was an attempt by Purdue group to measure energy density in el. particle collisions. See T.Alexopoulos et al, PLB 528 (2002) 30

34 Conclusions Exponential mass spectrum is a very special object. It imparts the Hagedorn temperature to particles in contact with it = perfect thermostat! It is also a perfect particle reservoir! The inverse slope that Hagedorn resonances are imparting is a kinetic temperature. K.A.B. et al, hep-ph/ The presence of the mass cut-off of the Hagedorn spectrum DOES NOT ALTER our conclusions: Hagedorn resonances are PERFECT THERMOSTATS and PARTICLE RESERVOIRS! Our results justify the Statistical Hadronization Model and explain why hadronization T and inverse slopes in el. particle collisions are about 170 MeV. This is phase transition in finite system. No liberation of color d.o.f. is necessary for that! 31

35 A+A data h+h, e+e data 32

36 Stability Against Fragmentation For no translational entropy the Hagedorn thermostat (=bag) is indifferent to fragmentation. ρ H (m) indifferent exp m = exp T Η ρ H (m 1 ) ρ H (m 2 ) Translational d.o.f. do not change this result. Present model not only EXPLAINS why Becattini s Stat. Hadronization Model gives T close to Hagedorn T, but it also justifies the validity of his major assumption that i=1 T Η all fireballs originate from a Singe Protofireball! k m i ρ H (m 3 ) ρ H (m 4 ) ρ H (m 5 ) ρ H (m 5 ) ρ H (m 6 ) ρ H (m k ) 33

37 Flash at Double Phi Decay? Different models show that parameter a in Hagedorn mass spectrum is a=3 or even a>3. In this case at the end of radiation ± m H m o and T 1.1 T H 1.2 T H For pions it is unobservable, but for heavy hadrons it is matter! Thus, heavy hadrons emitted about the end of radiation should have an enhanced probability, compared to early time emission! Best candidate to see Flash (V. Koch) is, probably, double phi decay? For more definite predictions we need better model and better data! 34

38 Flash at Double Phi Decay? Different models show that parameter a in Hagedorn mass spectrum is a=3 or even a>3. In this case at the end of radiation ± m H m o and T 1.1 T H 1.2 T H For pions it is unobservable, but for heavy hadrons it is matter! Thus, heavy hadrons emitted about the end of radiation should have an enhanced probability, compared to early time emission! Best candidate to see Flash (V. Koch) is, probably, double phi decay? For more definite predictions we need better model and better data! 34

39 Flash at Double Phi Decay? Different models show that parameter a in Hagedorn mass spectrum is a=3 or even a>3. In this case at the end of radiation ± m H m o and T 1.1 T H 1.2 T H For pions it is unobservable, but for heavy hadrons it is matter! Thus, heavy hadrons emitted about the end of radiation should have an enhanced probability, compared to early time emission! Best candidate to see Flash (V. Koch) is, probably, double phi decay? For more definite predictions we need better model and better data! 34

40 Conclusions Exponential mass spectrum is a very special object. It imparts the Hagedorn temperature to particles in contact with it = perfect thermostat! It is also a perfect particle reservoir! Grand canonical treatment should be used with great care! Microcanonical one is the right one. Our results justify the Statistical Hadronization Model and explain why hadronization T and inverse slopes in el. particle collisions are about 170 MeV. This is phase transition in finite system. No liberation of color d.o.f. is necessary for that! 35

arxiv:hep-ph/ v2 8 Aug 2002

arxiv:hep-ph/ v2 8 Aug 2002 Ω, J/ψ and ψ ransverse Mass Spectra at RHIC K.A. Bugaev a,b, M. Gaździcki c and M.I. Gorenstein a,d a Bogolyubov Institute for heoretical Physics, Kiev, Ukraine b Gesellschaft für Schwerionenforschung

More information

Hagedorn States in Relativistic Heavy Ion Collisions

Hagedorn States in Relativistic Heavy Ion Collisions Hagedorn States in Relativistic Heavy Ion Collisions Jacquelyn Noronha-Hostler Frankfurt Institute for Advanced Studies, Frankfurt am Main Excited Hadrons : February 25 th, 211 : Jefferson Lab Newport

More information

Overview* of experimental results in heavy ion collisions

Overview* of experimental results in heavy ion collisions Overview* of experimental results in heavy ion collisions Dipartimento di Fisica Sperimentale dell Universita di Torino and INFN Torino * The selection criteria of the results presented here are (to some

More information

Elliptic flow. p y. Non-central collision of spherical nuclei or central collision of deformed nuclei. Overlapping zone is of almond shape

Elliptic flow. p y. Non-central collision of spherical nuclei or central collision of deformed nuclei. Overlapping zone is of almond shape Outline: Non-central collision of spherical nuclei or central collision of deformed nuclei Overlapping zone is of almond shape Co ordinate space anisotropy is converted into momentum space anisotropy via

More information

Indications for the Onset of Deconfinement in Pb+Pb collisions at the SPS

Indications for the Onset of Deconfinement in Pb+Pb collisions at the SPS Indications for the Onset of Deconfinement in Pb+Pb collisions at the SPS P.Seyboth, MPI für Physik, München for the NA49 Collaboration Introduction Search for structure in the energy dependence of Inclusive

More information

Q a u r a k k m a m t a t t e t r e p r p ob o e b d e d b y b y di d l i e l p e t p o t n o s

Q a u r a k k m a m t a t t e t r e p r p ob o e b d e d b y b y di d l i e l p e t p o t n o s Quark matter probed by dileptons Olena Linnyk July 02, 2010 Information from photons and dileptons 14 12 10 ε/t 4 8 6 4 2 Lattice QCD: µ B =0 µ B =530 MeV 0 0.5 1.0 1.5 2.0 2.5 3.0 T/T c But what are the

More information

Quarkonia physics in Heavy Ion Collisions. Hugo Pereira Da Costa CEA/IRFU Rencontres LHC France Friday, April

Quarkonia physics in Heavy Ion Collisions. Hugo Pereira Da Costa CEA/IRFU Rencontres LHC France Friday, April Quarkonia physics in Heavy Ion Collisions Hugo Pereira Da Costa CEA/IRFU Rencontres LHC France Friday, April 5 2013 1 2 Contents Introduction (QGP, Heavy Ion Collisions, Quarkonia) Quarkonia at the SPS

More information

Ultra-Relativistic Heavy Ion Collision Results

Ultra-Relativistic Heavy Ion Collision Results Ultra-Relativistic Heavy Ion Collision Results I. Overview of Effects Observed in Large Nucleus-Nucleus Collision Systems (Au+Au, Pb+Pb) High p T Hadrons Are Suppressed at LHC & RHIC Central Pb-Pb and

More information

Hadron Production in ultra relativistic nuclear collisions and the QCD phase boundary

Hadron Production in ultra relativistic nuclear collisions and the QCD phase boundary Hadron Production in ultra relativistic nuclear collisions and the QCD phase boundary introductory remarks the thermal/statistical model results for AA collisions a note on thermal models in elementary

More information

J/Ψ-suppression in the hadron resonance gas

J/Ψ-suppression in the hadron resonance gas J/Ψ-suppression in the hadron resonance gas Dariusz Prorok Institute of Theoretical Physics University of Wroc law Wroc law, 17 February 2014 HECOLS workshop and XXXII Max-Born Symposium Dariusz Prorok

More information

Review of Signals of Deconfinement

Review of Signals of Deconfinement Review of Signals of Deconfinement Critical Point and Onset of Deconfinement Florence March 9 2006 Thanks to Burak Alver, Ed Wenger, Siarhei Vaurynovich, Wei LI Gunther Roland Review of Signals of Deconfinement

More information

Energy scan programs in HIC

Energy scan programs in HIC Energy scan programs in HIC Anar Rustamov a.rustamov@cern.ch Onset of Deconfinement Signals Particle spectra Azimuthal modulations Event-by-Event Fluctuations Critical point Phase Boundaries Confronting

More information

Equation of state. Pasi Huovinen Uniwersytet Wroc lawski. Collective Flows and Hydrodynamics in High Energy Nuclear Collisions

Equation of state. Pasi Huovinen Uniwersytet Wroc lawski. Collective Flows and Hydrodynamics in High Energy Nuclear Collisions Equation of state Pasi Huovinen Uniwersytet Wroc lawski Collective Flows and Hydrodynamics in High Energy Nuclear Collisions Dec 14, 2016, University of Science and Technology of China, Hefei, China The

More information

The Quark-Gluon Plasma and the ALICE Experiment

The Quark-Gluon Plasma and the ALICE Experiment The Quark-Gluon Plasma and the ALICE Experiment David Evans The University of Birmingham IoP Nuclear Physics Conference 7 th April 2009 David Evans IoP Nuclear Physics Conference 2009 1 Outline of Talk

More information

Outline: Introduction and Motivation

Outline: Introduction and Motivation Heavy ion collisions at lower energies: challenges and opportunities Beam Energy Scan (BES I and II) from RHIC Lijuan Ruan (Brookhaven National Laboratory) Outline: Introduction and Motivation Results

More information

Bulk matter formed in Pb Pb collisions at the LHC

Bulk matter formed in Pb Pb collisions at the LHC Bulk matter formed in Pb Pb collisions at the LHC Introductory remarks is quark matter at LHC in equilibrium? Energy dependence of hadron production and the quark hadron phase boundary The fireball expands

More information

QGP Thermodynamics and Phase Transitions. Mahnaz Q. Haseeb Department of Physics CIIT, Islamabad

QGP Thermodynamics and Phase Transitions. Mahnaz Q. Haseeb Department of Physics CIIT, Islamabad QGP Thermodynamics and Phase Transitions Mahnaz Q. Haseeb Department of Physics CIIT, Islamabad Outline Thermodynamics in QGP What are the phase transitions? Order of the phase transition Where to study

More information

Understanding hadronization on the basis of fluctuations of conserved charges

Understanding hadronization on the basis of fluctuations of conserved charges Understanding hadronization on the basis of fluctuations of conserved charges R. Bellwied (University of Houston) in collaboration with S. Jena, D. McDonald (University of Houston) C. Ratti, P. Alba, V.

More information

Strangeness production in heavy ion collisions

Strangeness production in heavy ion collisions 1 Strangeness production in heavy ion collisions Krzysztof Redlich a a Gesellschaft für Schwerionenforschung, D-64291 Darmstadt, Germany Strangeness production in heavy ion collisions is discussed in a

More information

Dilepton Production from Coarse-grained Transport Dynamics

Dilepton Production from Coarse-grained Transport Dynamics Dilepton Production from Coarse-grained Transport Dynamics Stephan Endres (in collab. with M. Bleicher, H. van Hees, J. Weil) Frankfurt Institute for Advanced Studies ITP Uni Frankfurt ECT* Trento Workshop

More information

Thermal dileptons as fireball probes at SIS energies

Thermal dileptons as fireball probes at SIS energies Thermal dileptons as fireball probes at SIS energies Critical Point and Onset of Deconfinement 2016, Wrocław. Florian Seck TU Darmstadt in collaboration with T. Galatyuk, P. M. Hohler, R. Rapp & J. Stroth

More information

arxiv: v1 [nucl-ex] 22 Jan 2012

arxiv: v1 [nucl-ex] 22 Jan 2012 Cent. Eur. J. Phys. -5 Author version Central European Journal of Physics The Horn, Kink and Step, Dale: Research Article arxiv:0.50v [nucl-ex] Jan 0 Anar Rustamov Goethe-Universität Frankfurt Max-von-Laue-Str.,

More information

HOT HADRONIC MATTER. Hampton University and Jefferson Lab

HOT HADRONIC MATTER. Hampton University and Jefferson Lab 200 Cr oss sect ion (m b) 0 K ptotal 20 5 K pelastic 2 1 K N 1 1.6 2 3 4 2 5 6 7 8 9 20 30 3 40 THE ROLE OF BARYON RESONANCES IN Relativistic Heavy Ion Collider (RHIC) HOT HADRONIC MATTER Au+Au K d 2.5

More information

Dileptons in NN and AA collisions

Dileptons in NN and AA collisions Dileptons in NN and AA collisions Hendrik van Hees Goethe-Universität Frankfurt November 28, 2011 Hendrik van Hees (GU Frankfurt) The Dilepton Probe November 28, 2011 1 / 24 Outline 1 Electromagnetic probes

More information

Exploring dense matter at FAIR: The CBM Experiment

Exploring dense matter at FAIR: The CBM Experiment Exploring dense matter at FAIR: The CBM Experiment What s it all about Landmarks of the QCD phase diagram: deconfinement phase transition chiral phase transition critical point 2 Signatures of phase transition

More information

A Theoretical View on Dilepton Production

A Theoretical View on Dilepton Production A Theoretical View on Dilepton Production Transport Calculations vs. Coarse-grained Dynamics Stephan Endres (in collab. with M. Bleicher, H. van Hees, J. Weil) Frankfurt Institute for Advanced Studies

More information

5. Statistical Hadronization and Strangeness

5. Statistical Hadronization and Strangeness QGP Physics From SPS to LHC 5. Statistical Hadronization and Strangeness Prof. Dr. Johanna Stachel, PD Dr. Klaus Reygers Physikalisches Institut Universität Heidelberg SS 2011 1 5.1 Hadronization of the

More information

Further development of the hydrokinetic model and description of the RHIC and LHC A+A femtoscopic data

Further development of the hydrokinetic model and description of the RHIC and LHC A+A femtoscopic data and description of the RHIC and LHC A+A femtoscopic data Iu.A. Karpenko Bogolyubov Institute for heoretical Physics, 1-b, Metrolohichna str., Kiev, 080, Ukraine E-mail: karpenko@bitp.kiev.ua Bogolyubov

More information

The Dilepton Probe from SIS to RHIC

The Dilepton Probe from SIS to RHIC The Dilepton Probe from SIS to RHIC Hendrik van Hees Justus-Liebig Universität Gießen May 13, 2011 Institut für Theoretische Physik JUSTUS-LIEBIG- UNIVERSITÄT GIESSEN Hendrik van Hees (JLU Gießen) The

More information

Multiplicity Fluctuations in Statistical Models

Multiplicity Fluctuations in Statistical Models Multiplicity Fluctuations in Statistical Models Michael Hauer Outline Introduction Particle Anti Particle Gas Hadron Gas Comparison with Data Summary 1 Statistical Ensembles Grand Canonical Canonical Microcanonical

More information

arxiv: v1 [hep-ph] 18 Feb 2016

arxiv: v1 [hep-ph] 18 Feb 2016 Nuclear Physics A Nuclear Physics A 00 (2016) 1 5 www.elsevier.com/locate/procedia arxiv:1602.05811v1 [hep-ph] 18 Feb 2016 Abstract Confronting fluctuations of conserved charges in central nuclear collisions

More information

Ultra-relativistic nuclear collisions and Production of Hot Fireballs at SPS/RHIC

Ultra-relativistic nuclear collisions and Production of Hot Fireballs at SPS/RHIC Ultra-relativistic nuclear collisions and Production of Hot Fireballs at SPS/RHIC Benjamin Dönigus 03.12.2009 Seminar WS 2009/2010 Relativistische Schwerionenphysik Interface of Quark-Gluon Plasma and

More information

Chemical Nonequilibrium in QGP and The Phase Boundary to Hadron Matter

Chemical Nonequilibrium in QGP and The Phase Boundary to Hadron Matter Chemical Nonequilibrium in QGP and The Phase Boundary to Hadron Matter Vienna Equilibration Workshop, August 12, 2005 Jean Letessier and JR, nucl-th/0504028, other works Is there a chemical nonequilibrium

More information

Experimental Approach to the QCD Phase Diagram & Search for the Critical Point

Experimental Approach to the QCD Phase Diagram & Search for the Critical Point Experimental Approach to the QCD Phase Diagram & Search for the Critical Point / LBNL, Berkeley The John Cramer Symposium University of Washington, Seattle, September 10-11, 2009 Outline : QCD phase diagram

More information

Introduction to Heavy Ion Physics at the LHC

Introduction to Heavy Ion Physics at the LHC Introduction to Heavy Ion Physics at the LHC F. Noferini (noferini@bo.infn.it) INFN Bologna/CNAF E. Fermi Centre, Rome ALICE Review http://en.sif.it/journals/ncr/econtents/2016/039/10 24/10/2016 1 Hadrons

More information

The Study of the Critical Point of QCD using Fluctuations. Gary Westfall Terry Tarnowsky Hui Wang Michigan State University

The Study of the Critical Point of QCD using Fluctuations. Gary Westfall Terry Tarnowsky Hui Wang Michigan State University The Study of the Critical Point of QCD using Fluctuations Gary Westfall Terry Tarnowsky Hui Wang Michigan State University 1 Search for QCD Transitions If we pass through a QCD phase transition, we expect

More information

SMR/ International Workshop on QCD at Cosmic Energies III. 28 May - 1 June, Lecture Notes. E. Zabrodin University of Oslo Oslo, Norway

SMR/ International Workshop on QCD at Cosmic Energies III. 28 May - 1 June, Lecture Notes. E. Zabrodin University of Oslo Oslo, Norway SMR/1842-26 International Workshop on QCD at Cosmic Energies III 28 May - 1 June, 2007 Lecture Notes E. Zabrodin University of Oslo Oslo, Norway Open questions of the statistical approach to or little

More information

Dynamical equilibration of stronglyinteracting

Dynamical equilibration of stronglyinteracting Dynamical equilibration of stronglyinteracting infinite parton matter Vitalii Ozvenchuk, in collaboration with E.Bratkovskaya, O.Linnyk, M.Gorenstein, W.Cassing CPOD, Wuhan, China 11 November 2011 1 Motivation

More information

Outline: Introduction

Outline: Introduction Electromagnetic radiation in hadronic interactions: from pp to AA collisions Outline: Introduction Lijuan Ruan (Brookhaven National Laboratory) Recent results on dileptons (dielectrons) Recent results

More information

Resonance production in a thermal model

Resonance production in a thermal model Resonance production in a thermal model W. Broniowski and W. Florkowski The H. Niewodniczański Institute of Nuclear Physics ISMD 2003, Cracow π π π π ρ N ω π π π N π π e (E µ)/t This is not the Cracow

More information

The Dilepton Probe from SIS to RHIC

The Dilepton Probe from SIS to RHIC The Dilepton Probe from SIS to RHIC Hendrik van Hees Justus-Liebig Universität Gießen April 14, 2010 Institut für Theoretische Physik JUSTUS-LIEBIG- UNIVERSITÄT GIESSEN Hendrik van Hees (JLU Gießen) The

More information

Light flavour hadron production in the ALICE experiment at LHC

Light flavour hadron production in the ALICE experiment at LHC Light flavour hadron production in the ALICE experiment at LHC Angela Badalà INFN Sezione di Catania for the ALICE Collaboration ALICE heavy-ion runs Dataset s NN (TeV) Integrated luminosity 2010 Pb-Pb

More information

Big Bang to Little Bang ---- Study of Quark-Gluon Plasma. Tapan Nayak July 5, 2013

Big Bang to Little Bang ---- Study of Quark-Gluon Plasma. Tapan Nayak July 5, 2013 Big Bang to Little Bang ---- Study of Quark-Gluon Plasma Tapan Nayak July 5, 2013 Universe was born through a massive explosion At that moment, all the matter was compressed into a space billions of times

More information

Jet Physics with ALICE

Jet Physics with ALICE Jet Physics with ALICE Oliver Busch for the ALICE collaboration Oliver Busch Tsukuba 2014 /03/13 1 Outline introduction results from pp jets in heavy-ion collisions results from Pb-Pb collisions jets in

More information

MULTI-CHANNEL MEASUREMENTS OF LIGHT VECTOR MESONS AT PHENIX

MULTI-CHANNEL MEASUREMENTS OF LIGHT VECTOR MESONS AT PHENIX International Journal of Modern Physics E Vol. 16, Nos. 7 & 8 (2007) 2154 2159 c World Scientific Publishing Company MULTI-CHANNEL MEASUREMENTS OF LIGHT VECTOR MESONS AT PHENIX KENTA SHIGAKI [PHENIX Collaboration]

More information

Parton dynamics in heavy-ion collisions from FAIR to LHC

Parton dynamics in heavy-ion collisions from FAIR to LHC Parton dynamics in heavy-ion collisions from FAIR to LHC Wolfgang Cassing Erice, 21.09.2012 The holy grail: Search for the critical point The phase diagram of QCD Study of the phase transition from hadronic

More information

arxiv:nucl-th/ v1 12 Dec 2002

arxiv:nucl-th/ v1 12 Dec 2002 Thermal model for RHIC, part I: particle ratios and spectra 1 Wojciech Florkowski and Wojciech Broniowski arxiv:nucl-th/0212052v1 12 Dec 2002 The H. Niewodniczański Institute of Nuclear Physics ul. Radzikowskiego

More information

Measurements of net-particle fluctuations in Pb-Pb collisions at ALICE

Measurements of net-particle fluctuations in Pb-Pb collisions at ALICE Measurements of net-particle fluctuations in Pb-Pb collisions at ALICE Alice Ohlson (Universität Heidelberg) for the ALICE Collaboration Observables of Hadronization and the QCD Phase Diagram in the Cross-over

More information

Thermal dileptons from coarse-grained transport as probes of hot and dense QCD matter

Thermal dileptons from coarse-grained transport as probes of hot and dense QCD matter Thermal dileptons from coarse-grained transport as probes of hot and dense QCD matter Lunch Club Seminar, Universität Gießen Florian Seck TU Darmstadt in collaboration with T. Galatyuk, R. Rapp & J. Stroth

More information

Covariant transport approach for strongly interacting partonic systems

Covariant transport approach for strongly interacting partonic systems Covariant transport approach for strongl interacting partonic sstems Wolfgang Cassing Jamaica, 03.01.2010 Compressing and heating hadronic matter: sqgp Questions: What What are the transport properties

More information

Results with Hard Probes High p T Particle & Jet Suppression from RHIC to LHC

Results with Hard Probes High p T Particle & Jet Suppression from RHIC to LHC Results with Hard Probes High p T Particle & Jet Suppression from RHIC to LHC PHENIX! AGS! RHIC! STAR! Cover 3 decades of energy in center-of-mass s NN = 2.76 TeV 5.5 TeV (2015) CMS LHC! s NN = 5-200 GeV

More information

Soft physics results from the PHENIX experiment

Soft physics results from the PHENIX experiment Prog. Theor. Exp. Phys. 2015, 03A104 (15 pages) DOI: 10.1093/ptep/ptu069 PHYSICS at PHENIX, 15 years of discoveries Soft physics results from the PHENIX experiment ShinIchi Esumi, Institute of Physics,

More information

Creating a Quark Gluon Plasma With Heavy Ion Collisions

Creating a Quark Gluon Plasma With Heavy Ion Collisions Creating a Quark Gluon Plasma With Heavy Ion Collisions David Hofman UIC Special thanks to my Collaborators in PHOBOS, STAR, & CMS and B. Back, M. Baker, R. Hollis, K. Rajagopal, R. Seto, and P. Steinberg

More information

Heavy Ion Physics Lecture 3: Particle Production

Heavy Ion Physics Lecture 3: Particle Production Heavy Ion Physics Lecture 3: Particle Production HUGS 2015 Bolek Wyslouch echniques to study the plasma Radiation of hadrons Azimuthal asymmetry and radial expansion Energy loss by quarks, gluons and other

More information

Strangeness production in relativistic heavy ion collisions

Strangeness production in relativistic heavy ion collisions F. Becattini, University of Florence Strangeness production in relativistic heavy ion collisions OUTLINE Strangeness enhancement in heavy ion collisions Statistical model and strangeness undersaturation

More information

Fluctuations of conserved charges and freeze-out conditions in heavy ion collisions

Fluctuations of conserved charges and freeze-out conditions in heavy ion collisions Freeze-out parameters Fluctuations of conserved charges and freeze-out conditions in heavy ion collisions Claudia Ratti University of Houston, Texas (USA) S. Borsanyi, Z. Fodor, S. Katz, S. Krieg, C. R.,

More information

Hadron Resonance Gas Model

Hadron Resonance Gas Model Hadron Resonance Gas Model Valentina Mantovani Sarti QGP lectures-torino 2016 6 April 2016 V.Mantovani Sarti Hadron Resonance Gas Model 6 April 2016 1 / 6 References Particle production in heavy ion collisions,

More information

Low mass dileptons from Pb + Au collisions at 158 A GeV

Low mass dileptons from Pb + Au collisions at 158 A GeV PRAMANA cfl Indian Academy of Sciences Vol. 60, No. 5 journal of May 2003 physics pp. 1073 1077 Low mass dileptons from Pb + Au collisions at 158 A GeV SOURAV SARKAR 1, JAN-E ALAM 2;Λ and T HATSUDA 2 1

More information

Heavy-Ion Physics Lecture 1: QCD and the Quark-Gluon Plasma

Heavy-Ion Physics Lecture 1: QCD and the Quark-Gluon Plasma Heavy-Ion Physics Lecture 1: QCD and the Quark-Gluon Plasma Professor David Evans The University of Birmingham Nuclear Physics Summer School Queen s University, Belfast XX th August 2017 Outline of Lectures

More information

Measures of charge fluctuations in nuclear collisions

Measures of charge fluctuations in nuclear collisions Measures of charge fluctuations in nuclear collisions Jacek Zaranek* Institut für Kernphysik, Universität Frankfurt, D-60486 Frankfurt, Germany Received 27 November 2001; published 29 August 2002 The properties

More information

Studies of QCD Matter From E178 at NAL to CMS at LHC

Studies of QCD Matter From E178 at NAL to CMS at LHC Studies of QCD Matter From E178 at NAL to CMS at LHC Wit Busza MIT Wit Busza Fermilab Colloquium, May 2012 1 The Study of the Condensed Matter of QCD, more commonly known as Relativistic Heavy Ion Physics

More information

Strangeness production and nuclear modification at LHC energies

Strangeness production and nuclear modification at LHC energies Strangeness production and nuclear modification at LHC energies Oliver Busch for the ALICE collaboration 1 Outline introduction jet azimuthal anisotropy jet shapes 2 Introduction 3 Jets: seeing quarks

More information

arxiv: v2 [nucl-th] 31 Aug 2012

arxiv: v2 [nucl-th] 31 Aug 2012 Hadron Resonance Gas at Freeze out: Reminder on Importance of Repulsive Interactions V.V. Begun, 1, 2 M. Gaździcki, 2, 3 and M.I. Gorenstein 1, 4 1 Bogolyubov Institute for Theoretical Physics, Kiev, Ukraine

More information

Review of photon physics results at Quark Matter 2012

Review of photon physics results at Quark Matter 2012 Review of photon physics results at Quark Matter 2012 Jet Gustavo Conesa Balbastre 1/28 Why photons? Direct thermal: Produced by the QGP Measure medium temperature R AA > 1, v 2 > 0 Direct prompt: QCD

More information

Mapping the Nuclear Matter Phase Diagram with STAR: Au+Al at 2.8 AGeV and Au+Au at 19.6 GeV

Mapping the Nuclear Matter Phase Diagram with STAR: Au+Al at 2.8 AGeV and Au+Au at 19.6 GeV Mapping the Nuclear Matter Phase Diagram with STAR: Au+Al at 2.8 AGeV and Au+Au at 19.6 GeV Samantha G Brovko June 14, 2011 1 INTRODUCTION In ultra-relativistic heavy ion collisions a partonic state of

More information

Evidence of Collective Flow in p-p Collisions at LHC

Evidence of Collective Flow in p-p Collisions at LHC Evidence of Collective Flow in p-p Collisions at LHC Inam-ul Bashir, Riyaz Ahmed Bhat and Saeed Uddin *, Department of Physics, Jamia Millia Islamia (Central University) New Delhi-110025 Abstract The mid-rapidity

More information

Medium Modifications of Hadrons and Electromagnetic Probe

Medium Modifications of Hadrons and Electromagnetic Probe Medium Modifications of Hadrons and Texas A&M University March 17, 26 Outline QCD and Chiral Symmetry QCD and ( accidental ) Symmetries Theory for strong interactions: QCD L QCD = 1 4 F a µν Fµν a + ψ(i

More information

Selected highlights from the STAR experiment at RHIC

Selected highlights from the STAR experiment at RHIC Selected highlights from the STAR experiment at RHIC Sonia Kabana for the STAR Collaboration Laboratoire de Physique Subatomique et des technologies associees (SUBATECH) and University of Nantes, France

More information

Critical lines and points. in the. QCD phase diagram

Critical lines and points. in the. QCD phase diagram Critical lines and points in the QCD phase diagram Understanding the phase diagram Phase diagram for m s > m u,d quark-gluon plasma deconfinement quark matter : superfluid B spontaneously broken nuclear

More information

(Small System) Strangeness Enhancement and Canonical Hadronization Phase Space

(Small System) Strangeness Enhancement and Canonical Hadronization Phase Space (Small System) Strangeness Enhancement and Canonical Hadronization Phase Space 1 / 19 For many details I recommend reading the 20 year old text Jan Rafelski, CERN-TH-ALICE, June 15, 2018 2 / 19 At CERN:

More information

PoS(CPOD07)013. Fluctuations in Statistical Models. Mark Gorenstein

PoS(CPOD07)013. Fluctuations in Statistical Models. Mark Gorenstein Bogolyubov Institute for Theoretical Physics, Kiev, Ukraine. E-mail: mark@mgor.kiev.ua The multiplicity fluctuations of hadrons are studied within the statistical hadron-resonance gas model in the large

More information

Probing the QCD phase diagram with dileptons a study using coarse-grained transport dynamics

Probing the QCD phase diagram with dileptons a study using coarse-grained transport dynamics Probing the QCD phase diagram with dileptons a study using coarse-grained transport dynamics Stephan Endres, Hendrik van Hees, and Marcus Bleicher Frankfurt Institute for Advanced Studies, Ruth-Moufang-Straße

More information

Recent Results of NA49

Recent Results of NA49 Recent Results of NA49 M. Gaździcki for the NA49 Collaboration Institut für Kernphysik, Univetsität Frankfurt D 6486 Frankfurt, Germany Abstract Results on the energy dependence of pion and strangeness

More information

arxiv: v1 [nucl-ex] 25 Jan 2012

arxiv: v1 [nucl-ex] 25 Jan 2012 Cent. Eur. J. Phys. 1-5 Author version Central European Journal of Physics New results from fluctuation analysis in NA49 at the CERN SPS Research Article arxiv:1201.5237v1 [nucl-ex] 25 Jan 2012 Maja Maćkowiak-Paw

More information

Beijing. Charmed hadron signals of partonic medium. Olena Linnyk

Beijing. Charmed hadron signals of partonic medium. Olena Linnyk Beijing Charmed hadron signals of partonic medium Olena Linnyk Our goal properties of partonic matter Hadron-string models Experiment QGP models Observables Hadron abundances J/Ψ anomalous suppression

More information

Thermal model fits: an overview

Thermal model fits: an overview Thermal model fits: an overview Volodymyr Vovchenko Goethe University Frankfurt & Frankfurt Institute for Advanced Studies Light up 2018 An ALICE and theory workshop, CERN June 14, 2018 The conventional

More information

Space-time Evolution of A+A collision

Space-time Evolution of A+A collision Time Space-time Evolution of A+A collision Jets Fluctuations p p K K0* f g e m Hadronization (Freeze-out) + Expansion Mixed phase? QGP phase Thermalization Space (z) A Pre-equilibrium A Hadrons reflect

More information

(Some) Bulk Properties at RHIC

(Some) Bulk Properties at RHIC (Some) Bulk Properties at RHIC Many thanks to organizers! Kai Schweda, University of Heidelberg / GSI Darmstadt 1/26 EMMI workshop, St. Goar, 31 Aug 3 Sep, 2009 Kai Schweda Outline Introduction Collectivity

More information

Lecture 12: Hydrodynamics in heavy ion collisions. Elliptic flow Last lecture we learned:

Lecture 12: Hydrodynamics in heavy ion collisions. Elliptic flow Last lecture we learned: Lecture 12: Hydrodynamics in heavy ion collisions. Elliptic flow Last lecture we learned: Particle spectral shapes in thermal model ( static medium) are exponential in m T with common slope for all particles.

More information

Parton matter in the early stage of ultrarelativistic heavy ion collisions

Parton matter in the early stage of ultrarelativistic heavy ion collisions Parton matter in the early stage of ultrarelativistic heavy ion collisions Péter Lévai KFKI RMKI, Budapest Project: Quarks, Hadrons and High Energy Collisions MTA - JINR Workshop Budapest, 7 September

More information

Baryon Number Fluctuations in Energy Scan Program at RHIC

Baryon Number Fluctuations in Energy Scan Program at RHIC Baryon Number Fluctuations in Energy Scan Program at RHIC Masakiyo Kitazawa (Osaka U.) MK, Asakawa, arxiv:1107.2755 (to appear in PRC) HIRSCHEGG2012, 18, Jan, 2012, Hirschegg Energy Scan Program @ RHIC

More information

A fresh look at the radiation from the QGP

A fresh look at the radiation from the QGP A fresh look at the radiation from the QGP Wolfgang Cassing (Uni. Giessen) In collaboration with Taesoo Song, Elena Bratkovskaya, Pierre Moreau The Erice School on Nuclear Physics 2018 The Strong Interaction:

More information

Fluctuations and QCD phase structure

Fluctuations and QCD phase structure Fluctuations and QCD phase structure Guo-yun Shao ( 邵国运 ) Xi an Jiaotong University Outline: Motivation Methods to describe fluctuations of conserved charges in heavy-ion collisions Numerical results and

More information

Constraining the QCD equation of state in hadron colliders

Constraining the QCD equation of state in hadron colliders Constraining the QCD equation of state in hadron colliders Akihiko Monnai (KEK, Japan) with Jean-Yves Ollitrault (IPhT Saclay, France) AM and J.-Y. Ollitrault, Phys. Rev. C 96, 044902 (2017) New Frontiers

More information

The ALICE experiment at LHC. Experimental conditions at LHC The ALICE detector Some physics observables Conclusions

The ALICE experiment at LHC. Experimental conditions at LHC The ALICE detector Some physics observables Conclusions The ALICE experiment at LHC Experimental conditions at LHC The ALICE detector Some physics observables Conclusions ALICE @ LHC PbPb collisions at 1150 TeV = 0.18 mj Experimental conditions @LHC 2007 start

More information

Photon and neutral meson production in pp and PbPb collisions at ALICE

Photon and neutral meson production in pp and PbPb collisions at ALICE Photon and neutral meson production in pp and PbPb collisions at ALICE Dieter Roehrich University of Bergen, Norway for the ALICE Collaboration Nuclear collisions at the LHC Photons as a probe for the

More information

+ High p T with ATLAS and CMS in Heavy-Ion 2.76TeV

+ High p T with ATLAS and CMS in Heavy-Ion 2.76TeV + High p T with ATLAS and CMS in Heavy-Ion Collisions @ 2.76TeV Lamia Benhabib On behalf of ATLAS and CMS HCP 2011, Paris lamia.benhabib@llr.in2p3.fr +Outlook Introduction : hard probes Strongly interacting

More information

arxiv: v1 [nucl-ex] 10 Feb 2012

arxiv: v1 [nucl-ex] 10 Feb 2012 Cent. Eur. J. Phys. 1-5 Author version Central European Journal of Physics Highlights of the Beam Energy Scan from STAR Review Article arxiv:10.389v1 [nucl-ex] 10 Feb 01 A. Schmah for the STAR Collaboration

More information

Sub-hadronic degrees of freedom in ultrarelativistic nuclear collisions at RHIC and beyond

Sub-hadronic degrees of freedom in ultrarelativistic nuclear collisions at RHIC and beyond Sub-hadronic degrees of freedom in ultrarelativistic nuclear collisions at RHIC and beyond Lawrence Berkeley National Laboratory Berkeley, US 1 Introduction: Heavy Ion Physics Today t = 5 10 17 sec T=1

More information

PHY397K - NUCLEAR PHYSICS - 2

PHY397K - NUCLEAR PHYSICS - 2 PHY397K - NUCLEAR PHYSICS - 2 PHY397K - NUCLEAR PHYSICS Spring 2015, Unique numbers: 57115 RLM 5.116, TTH 12:30-2:00 pm Christina Markert Office: RLM: 10.305 Phone: 512 471 8834 Email: cmarkert@physics.utexas.edu

More information

High Energy Frontier Recent Results from the LHC: Heavy Ions I

High Energy Frontier Recent Results from the LHC: Heavy Ions I High Energy Frontier Recent Results from the LHC: Heavy Ions I Ralf Averbeck ExtreMe Matter Institute EMMI and Research Division GSI Helmholtzzentrum für Schwerionenforschung Darmstadt, Germany Winter

More information

Mini-Workshop Bled 2016 QUARKS, HADRONS, MATTER

Mini-Workshop Bled 2016 QUARKS, HADRONS, MATTER Limits on hadron spectrum from bulk medium properties Wojciech Broniowski Inst. of Nuclear Physics PAN, Cracow, and Jan Kochanowski U., Kielce Mini-Workshop Bled 2016 QUARKS, HADRONS, MATTER Bled (Slovenia),

More information

Hadron Resonance Gas Model

Hadron Resonance Gas Model Hadron Resonance Gas Model Valentina Mantovani Sarti QGP lectures-torino 2017 12 April 2017 V.Mantovani Sarti Hadron Resonance Gas Model 12 April 2017 1 / 6 References Particle production in heavy ion

More information

( ) Lectures on Hydrodynamics ( ) =Λ Λ = T x T R TR. Jean-Yve. We can always diagonalize point by point. by a Lorentz transformation

( ) Lectures on Hydrodynamics ( ) =Λ Λ = T x T R TR. Jean-Yve. We can always diagonalize point by point. by a Lorentz transformation Lectures on Hydrodynamics Jean-Yve µν T µ ( x) 0 We can always diagonalize point by point by a Lorentz transformation T Λ µν x ( u ) µ and space-rotation R ( Ω) Then, in general, λ0 0 0 0 0 λx 0 0 Λ Λ

More information

Quark Gluon Plasma Recent Advances

Quark Gluon Plasma Recent Advances Quark Gluon Plasma Recent Advances Lawrence Berkeley National Laboratory LP01, Rome, July 2001 Introduction P.C. Sereno et al. Science, Nov. 13, 1298(1998). (Spinosaurid) We may not see the entire body

More information

Fluctuations: Experiment

Fluctuations: Experiment Fluctuations: Experiment MIT QCD in the RHIC Era - ITP/UCSB April 8-12 2002 Fluctuations: Experiment Survey of experimental results Global fluctuations of intensive variables Energy and centrality dependence

More information

Photoabsorption and Photoproduction on Nuclei in the Resonance Region

Photoabsorption and Photoproduction on Nuclei in the Resonance Region Photoabsorption and Photoproduction on Nuclei in the Resonance Region Susan Schadmand Institut für Kernphysik First Workshop on Quark-Hadron Duality Frascati, June 6-8, 2005 electromagnetic probes Hadron

More information

Fluctuations and Search for the QCD Critical Point

Fluctuations and Search for the QCD Critical Point Fluctuations and Search for the QCD Critical Point Kensuke Homma Hiroshima University. Integrated multiplicity fluctuations. Differential multiplicity fluctuations 3. K to π and p to π fluctuations 4.

More information

Lepton and Charm Measurements in the First Two Years of RHIC: An Experimental Overview

Lepton and Charm Measurements in the First Two Years of RHIC: An Experimental Overview Lepton and Charm Measurements in the First Two Years of RHIC: An Experimental Overview Ralf Averbeck State University of New York at Stony Brook INT/RHIC Winter Workshop, Seattle, December 13-15, 2002

More information

The evidences of missing resonances from THERMINATOR. Viktor Begun

The evidences of missing resonances from THERMINATOR. Viktor Begun he evidences of missing resonances from HERMINAOR Viktor Begun Faculty of Physics, Warsaw University of echnology, Poland in collaboration with W. Florkowski, M.I. Gorenstein, M. Rybczynski, V. Vovchenko

More information