Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Global and Hadronic Observables in the PHENIX Experiment at RHIC A Relativistic Heavy Ion.

Slides:

Advertisements

Similar presentations

Mass, Quark-number, Energy Dependence of v 2 and v 4 in Relativistic Nucleus- Nucleus Collisions Yan Lu University of Science and Technology of China Many.

Advertisements

BNL Seminar 10/02 High p t Hadrons in STAR: Past, Present, and Future Michael L. Miller Yale University For the STAR Collaboration.

K*(892) Resonance Production in Au+Au and Cu+Cu Collisions at  s NN = 200 GeV & 62.4 GeV Motivation Analysis and Results Summary 1 Sadhana Dash Institute.

Results from PHENIX on deuteron and anti- deuteron production in Au+Au collisions at RHIC Joakim Nystrand University of Bergen for the PHENIX Collaboration.

In relativistic heavy ion collisions a high energy density matter Quark-Gluon Plasma (QGP) may be formed. Various signals have been proposed which probe.

Julia VelkovskaMoriond QCD, March 27, 2015 Geometry and Collective Behavior in Small Systems from PHENIX Julia Velkovska for the PHENIX Collaboration Moriond.

ICPAQGP, Kolkata, February 2-6, 2015 Itzhak Tserruya PHENIX highlights.

Particle Production in p + p Reactions at GeV K. Hagel Cyclotron Institute Texas A & M University for the BRAHMS Collaboration.

- RHIC, PHENIX PHENIX Pad Chambers - Net-Charge Fluctuations Predictions PHENIX Analysis Comparison to simulations O UTLINE.

Source Dynamics from Deuteron and Anti-deuteron Measurements in 200 GeV Au+Au Collisions Hugo E Valle Vanderbilt University (For the PHENIX Collaboration)

- How can Net-Charge Fluctuations be used as a signal of a Quark- Gluon Plasma (QGP) phase transition? - Definition of a simple fluctuation measure, some.

Recent Results from STAR Rene Bellwied, Wayne State, for the STAR Collaboration  Thermalization & Timescales  High pt physics  Fluctuations  130 to.

5-12 April 2008 Winter Workshop on Nuclear Dynamics STAR Particle production at RHIC Aneta Iordanova for the STAR collaboration.

Mid-Rapidity Hadron Production Studied with the PHENIX detector at RHIC Joakim Nystrand Universitetet i Bergen for the PHENIX Collaboration.

ISMD31 / Sept. 4, 2001 Toru Sugitate / Hiroshima Univ. The 31 st International Symposium on Multiparticle Dynamics on 1-7, Sept in Datong, China.

Particle Spectra at AGS, SPS and RHIC Dieter Röhrich Fysisk institutt, Universitetet i Bergen Similarities and differences Rapidity distributions –net.

Masashi Kaneta, LBNL Masashi Kaneta for the STAR collaboration Lawrence Berkeley National Lab. First results from STAR experiment at RHIC - Soft hadron.

Identified Particle Ratios at large p T in Au+Au collisions at  s NN = 200 GeV Matthew A. C. Lamont for the STAR Collaboration - Talk Outline - Physics.

May, 20, 2010Exotics from Heavy Ion Collisions KE T and Quark Number Scaling of v 2 Maya Shimomura University of Tsukuba Collaborated with Yoshimasa Ikeda,

QM2006 Shanghai, China 1 High-p T Identified Hadron Production in Au+Au and Cu+Cu Collisions at RHIC-PHENIX Masahiro Konno (Univ. of Tsukuba) for the PHENIX.

Nov2,2001High P T Workshop, BNL Julia Velkovska High pt Hadrons from  sNN = 130 GeV Au-Au collisions measured in PHENIX Julia Velkovska (BNL) for PHENIX.

Phenix Global Observables and Hadrons Anuj K. Purwar SUNYSB-Physics June 12, 2003 Phenix Collaboration Meeting, Nashville.

QM’05 Budapest, HungaryHiroshi Masui (Univ. of Tsukuba) 1 Anisotropic Flow in  s NN = 200 GeV Cu+Cu and Au+Au collisions at RHIC - PHENIX Hiroshi Masui.

Tomoaki Nakamura - Hiroshima Univ.16/21/2005 Event-by-Event Fluctuations from PHENIX Tomoaki Nakamura for the PHENIX collaboration Hiroshima University.

Hard vs. Soft Physics at RHIC - Insights from PHENIX l Why hard vs. soft? l Soft physics: thermal, flow effects l Hard processes at RHIC l Conclusion Barbara.

BNL/ Tatsuya CHUJO CNS workshop, Tokyo Univ. Identified Charged Single Particle Spectra at RHIC-PHENIX Tatsuya Chujo (BNL) for the PHENIX.

20 Nov 2006, Quark Matter, Shanghai, ChinaShinIchi Esumi, Univ. of Tsukuba1 Rapporteur 3 Bulk Properties and Collective Phenomena ShinIchi Esumi Univ.

PHENIX results and prospects regarding strangeness and charm David Morrison (Brookhaven National Laboratory) for the PHENIX Collaboration.

M. Oldenburg Strange Quark Matter 2006 — March 26–31, Los Angeles, California 1 Centrality Dependence of Azimuthal Anisotropy of Strange Hadrons in 200.

G. Musulmanbekov, K. Gudima, D.Dryablov, V.Geger, E.Litvinenko, V.Voronyuk, M.Kapishin, A.Zinchenko, V.Vasendina Physics Priorities at NICA/MPD.

1 Jeffery T. Mitchell – Quark Matter /17/12 The RHIC Beam Energy Scan Program: Results from the PHENIX Experiment Jeffery T. Mitchell Brookhaven.

Energy Scan of Hadron (  0 ) Suppression and Flow in Au+Au Collisions at PHENIX Norbert Novitzky for PHENIX collaboration University of Jyväskylä, Finland.

LP. Csernai, NWE'2001, Bergen1 Part II Relativistic Hydrodynamics For Modeling Ultra-Relativistic Heavy Ion Reactions.

Flow fluctuation and event plane correlation from E-by-E Hydrodynamics and Transport Model Victor Roy Central China Normal University, Wuhan, China Collaborators.

Hadron Collider Physics 2012, 12/Nov/2012, KyotoShinIchi Esumi, Univ. of Tsukuba1 Heavy Ion results from RHIC-BNL ShinIchi Esumi Univ. of Tsukuba Contents.

Recent results from PHENIX at RHIC Joakim Nystrand Lund University / University of Bergen The PHENIX experiment Charged particle multiplicity p T spectra.

Masashi Kaneta, First joint Meeting of the Nuclear Physics Divisions of APS and JPS 1 / Masashi Kaneta LBNL

Charged Particle Multiplicity and Transverse Energy in √s nn = 130 GeV Au+Au Collisions Klaus Reygers University of Münster, Germany for the PHENIX Collaboration.

1 Nuclear modification and elliptic flow measurements for  mesons at  s NN = 200 GeV d+Au and Au+Au collisions by PHENIX Dipali Pal for the PHENIX collaboration.

Lecture 07: particle production in AA collisions

Robert Pak (BNL) 2012 RHIC & AGS Annual Users' Meeting 0 Energy Ro Robert Pak for PHENIX Collaboration.

07/27/2002Federica Messer High momentum particle suppression in Au-Au collisions at RHIC. Federica Messer ICHEP th international Conference on high.

Jeffery T. Mitchell (BNL) – Quark Matter The Evolution of Correlation Functions from Low to High p T : From HBT to Jets Quark Matter 2005 Jeffery.

Roy A. Lacey, Stony Brook, ISMD, Kromĕříž, Roy A. Lacey What do we learn from Correlation measurements at RHIC.

Itzhak Tserruya Initial Conditions at RHIC: an Experimental Perspective RHIC-INT Workshop LBNL, May31 – June 2, 2001 Itzhak Tserruya Weizmann.

24 Nov 2006 Kentaro MIKI University of Tsukuba “electron / photon flow” Elliptic flow measurement of direct photon in √s NN =200GeV Au+Au collisions at.

Strangeness in PHENIX Charles F. Maguire Vanderbilt University for the PHENIX Collaboration.

Diagnosing energy loss: PHENIX results on high-p T hadron spectra Baldo Sahlmüller, University of Münster for the PHENIX collaboration.

Systematic Study of Elliptic Flow at RHIC Maya SHIMOMURA University of Tsukuba ATHIC 2008 University of Tsukuba, Japan October 13-15, 2008.

BNL/ Tatsuya CHUJO JPS RHIC symposium, Chuo Univ., Tokyo Hadron Production at RHIC-PHENIX Tatsuya Chujo (BNL) for the PHENIX Collaboration.

PHOBOS at RHIC 2000 XIV Symposium of Nuclear Physics Taxco, Mexico January 2001 Edmundo Garcia, University of Maryland.

24 June 2007 Strangeness in Quark Matter 2007 STAR 2S0Q0M72S0Q0M7 Strangeness and bulk freeze- out properties at RHIC Aneta Iordanova.

Japanese Physics Society meeting, Hokkaido Univ. 23/Sep/2007, JPS meeting, Sapporo, JapanShinIchi Esumi, Inst. of Physics, Univ. of Tsukuba1 Collective.

Intermediate pT results in STAR Camelia Mironov Kent State University 2004 RHIC & AGS Annual Users' Meeting Workshop on Strangeness and Exotica at RHIC.

Masashi Kaneta, RBRC, BNL 2003 Fall Meeting of the Division of Nuclear Physics (2003/10/31) 1 KANETA, Masashi for the PHENIX Collaboration RIKEN-BNL Research.

Jet Production in Au+Au Collisions at STAR Alexander Schmah for the STAR Collaboration Lawrence Berkeley National Lab Hard Probes 2015 in Montreal/Canada.

Global and Collective Dynamics at PHENIX Takafumi Niida for the PHENIX Collaboration University of Tsukuba “Heavy Ion collisions in the LHC era” in Quy.

PHENIX Results from the RHIC Beam Energy Scan Brett Fadem for the PHENIX Collaboration Winter Workshop on Nuclear Dynamics 2016.

Hadron Spectra and Yields Experimental Overview Julia Velkovska INT/RHIC Winter Workshop, Dec 13-15, 2002.

Soft physics in PbPb at the LHC Hadron Collider Physics 2011 P. Kuijer ALICECMSATLAS Necessarily incomplete.

High p T hadron production and its quantitative constraint to model parameters Takao Sakaguchi Brookhaven National Laboratory For the PHENIX Collaboration.

Hard vs. Soft Physics at RHIC - Insights from PHENIX l Why hard vs. soft? l Soft physics: thermal, flow effects l Hard processes at RHIC l Conclusion Barbara.

Anisotropic flow of charged and strange particles in PbAu collisions at 158 AGeV measured in CERES experiment J. Milošević 1),2) 1)University of Belgrade.

High-pT Identified Hadron Production in Au+Au and Cu+Cu Collisions

Experimental Studies of Quark Gluon Plasma at RHIC

Scaling Properties of Fluctuation and Correlation Results from PHENIX

The Study of Elliptic Flow for PID Hadron at RHIC-PHENIX

Scaling Properties of Identified Hadron Transverse Momentum Spectra

Hiroshi Masui for the PHENIX collaboration August 5, 2005

Masahiro Konno (Univ. of Tsukuba) for the PHENIX　Collaboration Contact

Presentation transcript:

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Global and Hadronic Observables in the PHENIX Experiment at RHIC A Relativistic Heavy Ion Collision Census Jeffery T. Mitchell (Brookhaven National Laboratory) for the PHENIX Collaboration

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 ● Population – Charged particle multiplicity ● (Transverse) Energy Production and Density ● Demographics and Diversity – Identified Particle Spectra ● Sizes – Hanbury-Brown Twiss Correlations ● Collective Movement – Elliptic Flow ● Fluctuations – Transverse momentum and charge OUTLINE A Relativistic Heavy Ion Collision Census

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 The Census Bureau: PHENIX Pioneering High Energy Nuclear Interaction eXperiment 430 scientists from 12 countries

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 The Census Bureau: PHENIX RHIC beam line Collision point Muon Spectrometers Magnets Central Arm Spectrometers

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Taking The Census Over 300 tracks in a single head-on Gold-on-Gold Collision!

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Population Sampling 0-5% 15-20% 10-15% 0-5% 5-10% The correlation in the Beam-Beam Counter charge sum and Zero Degree Calorimeter Energy sum effectively selects impact parameter, or centrality. Urban “central” or Rural “peripheral”?

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Population Distributions Let's start by simply counting the number of charged particles produced (multiplicity) PHENIX Preliminary 200 GeV Au+Au Sasha Milov

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Population Growth Increasing with collision energy…

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Transverse Energy Production We can also measure the total amount of transverse energy produced using the PHENIX calorimeters PHENIX Preliminary 200 GeV Au+Au Sasha Bazilevsky

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Transverse Energy Production Growth Increasing with collision energy…

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Energy Density Growth Extracting the (Bjorken) energy density For the 2% most central 200 GeV Au+Au collisions, e ~ 5.5 GeV/fm 3, or more than 30 times more dense than normal nuclear matter! PHENIX [2%] PHENIX Preliminary [2%] NA49 [2%] WA98 [5%] E814/E877 [0.2%]

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Transverse Energy - to - Multiplicity Growth? No significant growth seen  Extra energy is going into particle production. PHENIX [2%] PHENIX Preliminary [2%] NA49 [2%] WA98 [5%] E814/E877 [0.2%]

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Population Diversity Identifying Particle Types

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 -- ++ PHENIX Preliminary centrality % % % % % % % % % % % Tatsuya Chujo, Julia Velkovska, Akio Kiyomichi K+K+ K-K- p p Identified Particle p T Distributions vs. Centrality PHENIX Preliminary Shapes: - Pions: Power law - Kaons: m T exponential - Protons: Boltzmann function

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Note: The proton yield is comparable to the pion 2 GeV. PHENIX Preliminary Au+Au at sqrt(s NN ) = 200GeV (Peripheral) Almost parallel to each other. Population Demographics: Identified Particle Spectra

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 vs. Centrality (N participants ) open symbols : 130 GeV data Systematic error on 200 GeV data  (10 %), K (15 %),  p (14 %) Increase of as a function of N part. Tends to saturate in the order  < K < proton (pbar) This is consistent with a hydrodynamic expansion picture. [GeV/c]

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Model by Wiedemann, Scotto, and Heinz, Phys. Rev. C 53, 918 (1996) E. Schnedermann, J. Sollfrank, and U. Heinz, Phys. Rev. C 48, 2462 (1993) FFluid elements each in local thermal equilibrium move in space-time with hydrodynamic expansion. –NNo temperature gradients BBoost invariance along collision axis z. IInfinite extent along rapidity y. CCylindrical symmetry with radius r. PParticle emission in a hyperbola of constant proper time  0 SShort emission duration, t 0 < 1 fm/c z A Simple Hydrodynamic Model for the Particle Emission Source t z r

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Radial position on freeze-out surface  = r/R Particle density distribution f(  ) is independent of  Reproducing the Shape of the Single Particle Spectra Parameters: normalization A freeze-out temperature T fo surface velocity  T tt mtmt 1/m t dN/dm t T fo A Fit range chosen to: a) Minimize contributions from hard processes (m t -m 0 ) < 1 GeV b) Exclude  resonance region p T < 0.5 GeV/c Linear flow profile  (  ) =  T  = 2  T /3 S. Esumi, S. Chapman, H. van Hecke, and N. Xu, Phys. Rev. C 55, R2163 (1997) t()t()  1 f(  )  Shape of spectra is important

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Fitting the Transverse Momentum Spectra Simultaneous fit in range (m t -m 0 ) < 1 GeV is shown. The top 5 centralities are scaled for visual clarity. Similar fits for negative particles. Jane Burward-Hoy

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Population Characteristics - The Fit Results: The Parameters T fo and  T vs. N part Expansion parameters in each centrality Overall systematic uncertainty is shown. A trend with increasing N part is observed: –T fo and  T Saturates at mid- centrality

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Bertsch-Pratt source radii The duration time R side (R TS ) R out (R TO ) Detector source Beam axis Au Beam axis R long (R L ) x y z Detector source In LCMS frame Particle Emission Source Sizes: Hanbury-Brown Twiss (HBT) Correlations Some models predict that the source size will become larger and the duration time will become longer in the presence of a QGP phase

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Akitomo Enokozino, Steve Johnson, Ron Soltz, Mike Heffner 3-D correlation results for charged pions λ = ± R side = 4.40 ± 0.12 R out = 3.73 ± 0.12 [fm] R long = 4.82 ± 0.15 λ = ± R side = 4.58 ± 0.14 R out = 3.88 ± 0.14 [fm] R long = 5.24 ± GeV Au+Au 、 Top 30% Centrality, 0.2 =0.46GeV/c PHENIX PRELIMINARY

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 k T dependence of the Radii Centrality is 0-30% Broad range : GeV/c All Radius parameters decrease as a function of k T  consistent with collective expansion picture. Stronger k T - dependence in R long has been observed. k T : average momentum of pair

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Source Size Evolution R out, R side, and R out /R side changes little with collision energy while R long is increasing. The HBT Puzzle

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Centrality dependence of R out /R side 0.2 =0.46GeV/c

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Using spectra information to constrain HBT fits… Most 10% central positive pion HBT radii (similar result for negative pion data). Systematic uncertainty in the data is 8.2% for R s, 16.1% for R o, 8.3% for R L. From the spectra (systematic errors):  T = 0.7 ± 0.2 syst. T fo = 110  23 syst. MeV ++++  0 = 13  2 fm/c R = 9.6±0.2 fm PHENIX Preliminary R s (fm)R o (fm)R L (fm) Jane Burward-Hoy Back to the hydrodynamic model

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Target Projectile b:impact parameter Reaction plane initial geometry final momentum anisotropy Population Mass Movement: Elliptic Flow dN/d(  -  ) = N (1 +  2v n ’ cos(n(  -  )))  : azimuthal angle for measured particles  : reaction plane angle v n ’ : raw anisotropy parameter v n = v n ’ /F : corrected anisotropy parameter F : reaction plane resolution

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Elliptic Flow vs transverse momentum v2v2 reaction plane based analysis Charged hadrons (r.p. |  |=3~4) p T (GeV/c) min. bias Au+Au at sqrt(s NN )=200GeV Hydro-dynamical model (*) Hydro+pQCD (dN g /dy=1000,500,200) (**) PHENIX Preliminary (*) P.Huovinen, P.F.Kolb, U.W.Heinz, P.V.Ruuskanen and S.A.Voloshin, Phys. Lett. B503, 58 (2001) dN g /dy=1000 dN g /dy=500 dN g /dy=200 (**) M.Gyulassy, I.Vitev and X.N.Wang, Phys. Rev. Lett. 86, 2537, (2001) Shinichi Esumi

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Au+Au at sqrt(s NN )=200GeV p T (GeV/c) v2v2 Negatives h-,pi-,K-,pbar Positives h+,pi+,K+,p v2v2 Elliptic Flow of identified hadrons r.p. |  |=3~4 min. bias PHENIX Preliminary Note: The Protons cross the pions at ~1.5 GeV/c

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Net charge fluctuations ”hadron-gas””quark-gluon plasma” Fractional electric charges (q =  1/3, 2/3) of the quarks ==> Charges more evenly spread in a plasma ==> Reduced net charge fluctuations in a small region of phase-space Proposed  3 years ago: Fluctuations in net charge and net baryon number significantly reduced if a QGP is formed in the collisions Asakawa, Heinz, Müller PRL 85(2000)2072; Jeon&Koch PRL 85(2000)2076

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Charged particle multiplicity n ch = n + + n – Net charge Q = n + - n – Define: v(Q)  Var(Q)/ For stochastic emission, v(Q) = 1 Globally, one expects v(Q) = 0 – charge conservation If we observe a fraction p of all produced particles  v(Q)  (1 – p ) from global charge conservation Net Charge Fluctuation Measures and Results For the 10% most central collisions, |  | 200 MeV/c,  =  /2: v(Q) = ± 0.007(stat.) – (syst.)  s nn = 130 GeV v(Q) = ± 0.006(stat.) ± (syst.)  s nn = 200 GeV ( PRELIMINARY ) Systematical error estimated from GEANT simulations (reconstruction efficiency and contribution from background tracks), and by comparing the results for the 2 arms (200 GeV). Joakim Nystrand

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 * AuAu 200 GeV, preliminary o AuAu 130 GeV, published Maximum for semi- central collisions. F pT related to  T : PHENIX Preliminary F pT (%) Fluctuations in Event-by-Event Average Transverse Momentum F pt represents the fraction of non-random fluctuations with respect to a mixed event baseline. Jeffery Mitchell

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 The fluctuation magnitude tends to increase as the p T range used to calculate is extended to higher values. F pT vs. P T range (0.2<p T <p T, max ) PHENIX Preliminary F pT (%) NOTE: The non-random fluctuations are being introduced primarily by high p T particles. A simulation of elliptic flow shows that there is a negligible contribution due to that effect. A Hint of Something New

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Explaining the Source of the Excess Fluctuations Observed signal is not consistent with temperature fluctuations due to a phase transition. Observed signal is consistent with jets suppressed by the preliminary PHENIX R AA values. HIJING, no jets HIJING, suppressed jets HIJING, unsuppressed jets Quark FF, no R AA scaling Quark FF, with R AA scaling HIJING 1.3 filtered through PHENIX acceptance A Simple Model: Throw inclusive spectra and distributions to match data. Define hard collision probability (P hard ) vs. p T from data excess over m T exponential fit. For hard collisions, generate jets by sampling the fragmentation function (FF). Calculate F T. The only adjusted parameter vs. centrality is P hard scaled by measured R AA.

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 PHENIX Census Conclusions ● Population, (transverse) energy production, and density – Monotonically increasing with collision energy. High energy density achieved. ● Demographics and Diversity – Consistent with hydrodynamical model expectations. Many protons at high p T. ● Sizes – Source sizes are large, but duration time is short ● Collective Movement – Only consistent with hydrodynamics below p T ~2 GeV/c. Protons flow more at high p T. ● Fluctuations – No excess charge fluctuations seen. Excess fluctuations seen are consistent with a predominant jet source. Synopsis: “Thermal”-like properties at low p T. Maybe something new observed at high p T.

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 The PHENIX census is still underway. Stay tuned for many more results soon!

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Auxiliary Slides Follow…

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Simultaneous Fit Conclusions ● Expansion measured from spectra depends on N part. – Saturates to constant for most central. ● Used simple profiles for the expansion and particle density distribution – Linear velocity profile – Flat particle density ● Within this hydro model, no common source parameters could be found for spectra and all HBT radii simultaneously. For the most peripheral spectra:  T = 0.5  0.2 syst. ( = 0.3 ± 0.2 syst. ) T fo = 135  23 MeV … to the 5% spectra  T = 0.7 ± 0.2 syst. ( = 0.5 ± 0.2 syst.) T fo = 110  23 MeV R s prefers  T > 1.0 and T fo < 50 MeV R o prefers  T > 1.4 and T fo > 100 MeV

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Nch: Comparison to theory 200 GeV130 GeV HIJING X.N.Wang and M.Gyulassy, PRL 86, 3498 (2001) Mini-jet S.Li and X.W.Wang Phys.Lett.B527:85-91 (2002) EKRT K.J.Eskola et al, Nucl Phys. B570, 379 and Phys.Lett. B 497, 39 (2001) KLN D.Kharzeev and M. Nardi, Phys.Lett. B503, 121 (2001) D.Kharzeev and E.Levin, Phys.Lett. B523, 79 (2001) PHENIX preliminary Mini-jet and KLN: describe data well HIJING: not too bad

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Coalescence model for anti-deuteron 1/B 2 QV Weak beam energy dependence from SPS to RHIC. Similar behavior has been observed in pion HBT correlations. Au+Au at sqrt(s NN ) =200GeV

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 PHENIX Run-2 Preliminiary

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Centrality dependence of source radii Fit with p0+p1*N part ^1/3 R long increases rapidly with the N part than R out. 0.2 =0.46GeV/c

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Using spectra information to constrain HBT fits… 10% central negative pion HBT radii. Systematic uncertainty in the data is 8.2% for R s, 16.1% for R o, 8.3% for R L. From the spectra (systematic errors):  T = 0.7 ± 0.2 syst. T fo = 110  23 syst. MeV ----  0 = 13  2 fm/c R = 9.7±0.2 fm PHENIX Preliminary R s (fm)R o (fm)R L (fm)

Jeffery T. Mitchell (BNL). 8 th Wigner Symposium. NYC. 5/28/03 Estimate of Baryon Potential Statistical thermal model hep-ph/ F.Becattini et al. Baryon chemical potential  B ~ 30MeV PHENIX preliminary (200 GeV), central (0-10%)  - /  + = 1.02  0.02 (stat)  0.1 (sys) K - / K + = 0.92  0.03 (stat)  0.1(sys) pbar / p = 0.70  0.04 (stat)  0.1(sys)