The Core Corona Model
|
|
- Willis Carson
- 5 years ago
- Views:
Transcription
1 The Core Corona Model or Is the Centrality Dependence of Observables more than a Core-Corona Effect? inspired by the first multiplicity results in CuCu then used to extract the physics of EPOS simulations finally compared to all available observables Multiplicities <p i t>, elliptic flow v 2 (v 2i ) spectra of identified particles in collaboration with C. Schreiber and K. Werner 1
2 Geometry of a Heavy-Ion Collision Non-central collision z The Model Number of participants (Npart): number of incoming nucleons (participants) in the overlap region In equilibrium: y 2 x Plasma to be studied Reaction plane Multipl /Npart =const, independent of b and hadrons species Experimentally not seen
3 Centrality Dependence of Hadron Multiplicities In reality more complicated (EPOS) -shape fluctuations, finite particle number -some of the participants scatter only once (cannot equilibrate) separation of core and corona The Model AuAu 0.1 CuCu Core corona model Assumption: Nucleons with 1 initial coll: corona Nucleons with more: core Calculated in Glauber Model 3
4 The Model M i (Npart) follows a very simple law Phys.Rev.C79: Calculation for Cu+Cu without any further input 4
5 Multiplicities works for non strange and for strange hadrons at 200 (and 62 and 17.3) AGeV 200 AGeV Au+Au Cu+Cu Theory=lines Cu+Cu: completely predicted from Au+Au and pp 5
6 Further confirmation of the core-corona effect strong correlation between multiplicity ratios peripheral/central and pp/central for all hadrons (strange and non-strange) Multiplicities Such a correlation is neither expected in statistical nor in hydro models M periph /M central Ω DATA STAR eq.1 Ω Ξ π reproduces quantitatively this correlation M pp /M central AA 6
7 This model explains STRANGENESS ENHANCEMENT in particular that the enhancement at SPS is larger than at RHIC 25 Multiplicities Fraction of strings with E<m fraction PRD 65, (2002) 1.2 pp at s=17.3 GeV pp at s=200 GeV 1 90% too low E 5 a a +a Strangeness enhancement in HI is in reality strangeness suppression in pp 30% too low E to produce Ω mass m (GeV/c )
8 - Central M i /N part same in Cu+Cu and Au+Au (pure core) - very peripheral same in Cu+Cu and Au+Au (pp) increase with N part stronger in Cu+Cu - all particle species follow the same law Multiplicities Φ is nothing special (the strangeness content is not considered in this model) Strangeness enhancement is in reality strangeness suppression in pp (core follows stat model predictions) - works for very peripheral reactions (N core =25). The formation of a possible new state is not size dependent Consequence: Light hadrons insensitive to properties of matter prior to freeze out 8
9 Dynamical Variables Dynamical variables Can we go further and investigate also kinematical variables like <p T (N part )>, v 2 (N part ) or even single particle spectra? Yes, if we make an additional (strong) assumption: <p T > is different for different corona hadrons. Therefore interactions among corona hadrons change their momentum <p T > is different for corona and core hadrons Therefore interactions between core and corona hadrons change their momentum If the core corona model works: improbable that core hadrons interact with corona hadrons EPOS gives evidence that this is indeed the scenario. 9
10 v 2 as a function of centrality has a long history Dynamical Variables: v 2 In ideal hydrodynamics: a) v 2 /ε (ε= eccentricity in coordinate space) is independent of the geometry if v 2 is caused by ε b) All RHIC and SPS data(for heavy systems) fall on a common line if plotted as: v 2 /ε as a fct of 1/SdN/dy 1/S dn/dy = measures the particle density c) Experiments and ideal hydro results do not agree Hydrodynamics describes many features in central collisions 10 Snellings QM09 therefore Centrality dependence points toward the need of viscous hydro (which in the limit of large dn/dy agrees with ideal hydrodynamics)
11 Centrality dependence of v 2 allows for the determination of the viscosity Dynamical Variables: v 2 v 2 assuming that visocus hydrodynamics describes the expansion There are no other observables which require a viscous hydro approach Drescher et al. PRC76, hydro fixed coupling hydro running coupling σ=5.5 mb fixed coupling σ=3.3 mb running coupling Phobos N part v 2 Luzum et al. PRC78, η/s=10-4 η/s=0.08 η/s=0.16 Glauber PHOBOS N Part
12 But the situation is not that simple Dynamical Variables: v 2 v2 / ecc_part EPOS: Ideal hydro describes the data if core- corona is taken into account EPOS 2 with hadron cascade w/o hadron cascade 0.05 data: phobos Npart viscosity and core-corona give about the same effect 12
13 Core-corona model: Only core particles develop elliptic flow (corona part. fragment like pp) Dynamical Variables: v 2 v 2 /ε(n part ) = (v 2 /ε) ideal hydro f core (N part ) All data compatible with a straight line and hence with the core-corona assumption No free parameter Pb+Pb 49 AGeV (NA49)
14 Possibility to distinguish between viscosity and core-corona? Dynamical Variables: v 2 v 2 of identified particles: core corona fraction is dependent on the species Less corona particles -> v 2 larger Good agreement for Λ less good for K 0 Deviation at central collision not understood Relative core fraction for Λ larger than for charge part more data needed 14
15 What is the difference between Dynamical Variables: v 2 viscous Viscous hydro hydro Core-corona Core-Corona? no surface effects Time evolution of all particles identical with finite viscosity v 2 /ε depends on centrality via (Drescher & Ollitrault PRC76, ) Distinction between surface and core core = ideal hydro (visc = 0) corona = pp Parameters: (v 2 /ε) hydro K 0 c S (E beam ) Parameters: (v 2 /ε) hydro (f core same as for multiplicities or <p t >) 15
16 Average p T <p T > = f i core (Npart)<p T > core + (1-fi core (Npart))<p T > corona %-5% 5% - 10% 10% - 20% 20% - 30% 30% - 40% 40% - 50% 50% - 60% 60% - 70% 70% - 80% pt average pt + K + p p, K, π 0.7 p p, Λ, Φ Centrality dep. Of <p T > due to core-corona and not necessarily due to collective flow %-5% 5% - 10% 10% - 20% 20% - 30% 30% - 40% 40% - 50% 50% - 60% 60% - 70% 70% - 80% Average pt Particles with similar mass have widely different p T
17 Single particle spectra (protons) Spectra d 2 N/(2.p T.dp T.dy) [(c/gev) 2 ] STAR STAR p spectra Core-Corona Data p T [GeV/c] [0,5%] [70-80%] d 2 N/(2.p T.dp T.dy) [(c/gev) 2 ] PHENIX PHENIX p spectra (low p T ) Core-Corona Data p T [GeV/c] 17
18 Core-corona agrees almost within errorbars with exp spectra Spectra Core - Corona / Data STAR p T [GeV/c] p inverse slope parameter 0% - 5% 5% - 10% 10% - 20% 20%-30% 30%-40% 40% - 50% 50% - 60% 60% - 70% 70% - 80% Core - Corona / Data PHENIX p T [GeV/c] p inverse slope parameter 0% - 5% 5% - 10% 10% - 20% 20%-30% 30%-40% 40% - 50% 50% - 60% 60% - 70% 70% - 80% 80% - 92% Core - Corona Data T [GeV] %-5% 5% - 10% 10% - 20% Core - Corona Data 20% - 30% 30% - 40% 40% - 50% 50% - 60% 60% - 70% 70% - 80% 80% - 92% pp T [GeV] %-5% 5% - 10% 10% - 20% 20% - 30% 30% - 40% 40% - 50% 50% - 60% 60% - 70% 70% - 80% pp 18 Not at all trivial: slope chance by a factor of 2 from central -> peripheral
19 Is this compatible with event generator results? no final state int Spectra K + p Final state int K - ap Yes, there is final state interaction but only at low p T where no data exist 19
20 spectra ratio STAR/PHENIX 0%-5% 5% - 10% 10% - 20% 20% - 30% 30% - 40% 40% - 50% 50% - 60% 60% - 70% 70% - 80% 5 π +,pt =0.65GeV π 20 STAR and PHENIX data do not agree Therefore the core and corona parameters are different p, p T =1.15GeV pbar, p T =1.15GeV K +,p T =0.65GeV 0%-5% 5% - 10% 10% - 20% 20% - 30% 30% - 40% 40% - 50% 50% - 60% 60% - 70% 70% - 80% 80% - 92% Spectra d 2 N/(2.pT.dpT.dy) [(c/gev) 2 ] STAR PHENIX
21 Conclusions Core corona model inspired by first CuCu results, checked against EPOS and developed to make this physics more transparent. V 2, M i,<p i T > and spectrum in central collisions and pp is the only input Conclusions Predicts quantitatively all experimental results on centrality dependence at midrapidity: -M i (Npart) of all hadrons i from SPS to RHIC (strangeness enhancement) -v 2 /ε (Npart) of charged particles from SPS to RHIC -<p i T> (Npart) of hadrons i from SPS to RHIC -single particle spectra -the experimental observation of correlations between peri/central and pp/central for multiplicities and <p T > In short: central and pp collisions is all what we need This is much more than we expected in view of its simplicity (improvement difficult due to large experimental error bars) 21
22 Conclusion on the Physics Conclusions The fact that the centrality dependence of all observables is described by this simple model may suggest that it describes the essential features of the reaction. If this were the case: What we see in the detector is a superposition of two independent contributions: A corona contribution with properties identical to pp A core contribution whose properties are independent of N part even for very small N part ( 20) The observed centrality dependence is due to the N part dependence of the ratio of both contributions During the expansion the average <p T > of each hadron species does not change The spectra remain a superposition -> very little final state int. after hadron formation above p T >.4 GeV When we have understood central AA and pp, we have understood all 22
23 Conclusion with respect to other models Conclusions The core-corona models shows (as experiment) correlations between pp and peripheral heavy ion reactions for multiplicities and <p T > which is alien to hydrodynamics. It reproduces the centrality dependence of v 2 without using viscosity In the core-corona model the centrality dependence of <p T > is given by the difference of <p T > in pp and central heavy ion reactions. Particles with similar masses (as p,φ,λ) show a quite different centrality dependence of <p T >. This questions whether collective flow, derived from blast wave fits, is really the origin of the mass dependence of <p T >(N part ). 23
24 RESULTS Thank you! 24
Comparing Initial Conditions in a (3+1)d Boltzmann + Hydrodynamics Transport Approach
Comparing Initial Conditions in a (3+1)d Boltzmann + Hydrodynamics Transport Approach Quantifying the Properties of Hot and Dense QCD Matter, Seattle, 04.06.10 Hannah Petersen Thanks to: Jan Steinheimer,
More informationUncertainties in the underlying e-by-e viscous fluid simulation
Uncertainties in the underlying e-by-e viscous fluid simulation Ulrich Heinz (The Ohio State University) Jet Workfest, Wayne State University, 24-25 August 213 Supported by the U.S. Department of Energy
More informationHints of incomplete thermalization in RHIC data
Hints of incomplete thermalization in RHIC data Nicolas BORGHINI CERN in collaboration with R.S. BHALERAO Mumbai J.-P. BLAIZOT ECT J.-Y. OLLITRAULT Saclay N. BORGHINI p.1/30 RHIC Au Au results: the fashionable
More informationCurrent Status of QGP hydro + hadron cascade approach
Current Status of QGP hydro + hadron cascade approach Tetsufumi Hirano the Univ. of Tokyo/LBNL 6/14/2010 @ INT Introduction Outline Motivation A short history of hybrid approaches Importance of hadronic
More informationHeavy Ions at the LHC: First Results
Heavy Ions at the LHC: First Results Thomas Schaefer North Carolina State University Heavy ion collision: Geometry R Au /γ y R Au x b z rapidity : y = 1 2 log ( E + pz E p z ) transverse momentum : p 2
More informationLecture 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 informationarxiv: v1 [nucl-ex] 6 Dec 2011
Higher harmonic anisotropic flow measurements of charged particles at s NN =.76 TeV with the ALICE detector You Zhou (for the ALICE Collaboration) arxiv:111.156v1 [nucl-ex] 6 Dec 011 Nikhef, Science Park
More informationFluctuations 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 informationNuclear Surface Effects in Heavy Ion Collision at RHIC and SPS 1 Klaus Werner
0-0 SQM 2006 Nuclear Surface Effects in Heavy Ion Collision at RHIC and SPS 1 Klaus Werner The fact that nuclei have diffuse surfaces (rather than being simple spheres) has dramatic consequences on the
More informationSpace-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 informationRecent Results from RHIC: On the trail of the Quark-Gluon Plasma
Recent Results from RHIC: On the trail of the Quark-Gluon Plasma Single Au+Au Collision seen by STAR@RHIC Gunther Roland Gunther Roland/MIT July 15 2003 MPI Munich 15/7/2003 Gunther Roland/MIT www.spiegel.de
More informationBeam energy scan using a viscous hydro+cascade model
Beam energy scan using a viscous hydro+cascade model Iurii KARPENKO INFN sezione Firenze In collaboration with Marcus Bleicher, Pasi Huovinen and Hannah Petersen Iurii Karpenko (INFN) BES in a viscous
More informationCreating 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 informationAnisotropic Flow: from RHIC to the LHC
Anisotropic Flow: from RHIC to the LHC Raimond Snellings The 2 nd Asian Triangle Heavy Ion Conference 13 th - 15 th October, 28 University of Tsukuba, Tsukuba, Japan arxiv:89.2949 [nucl-ex] 2 Elliptic
More informationReview 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 informationUltra-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 informationStudying collective phenomena in pp and A-A collisions with the ALICE experiment at the LHC
Studying collective phenomena in pp and A-A collisions with the ALICE experiment at the LHC Ivan Ravasenga Politecnico di Torino and I.N.F.N. 56 th course, Erice (Sicily, Italy) 14-23.06.2018 Ivan Ravasenga
More informationHigh-p T Neutral Pion Production in Heavy Ion Collisions at SPS and RHIC
High- Neutral Pion Production in Heavy Ion Collisions at SPS and RHIC K. Reygers for the WA98 and the PHENIX collaboration Institut für Kernphysik der Universität Münster Wilhelm-Klemm-Str. 9, D-4849 Münster,
More informationConstraining 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 informationBeijing. 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 informationFirst results with heavy-ion collisions at the LHC with ALICE
First results with heavy-ion collisions at the LHC with ALICE Domenico Elia INFN, Bari (Italy) on behalf of the ALICE Collaboration D. Elia (INFN Bari, Italy) PANIC 011 / Boston, MA (USA) July 4-9, 011
More informationHadronic equation of state and relativistic heavy-ion collisions
Hadronic equation of state and relativistic heavy-ion collisions Pasi Huovinen J. W. Goethe Universität Workshop on Excited Hadronic States and the Deconfinement Transition Feb 23, 2011, Thomas Jefferson
More informationUNIVERSITÀ DEGLI STUDI DI CATANIA INFN SEZIONE DI CATANIA
UNIVERSITÀ DEGLI STUDI DI CATANIA INFN SEZIONE DI CATANIA MOMENTUM ANISOTROPIES IN A TRANSPORT APPROACH V. BARAN, M. DI TORO, V. GRECO, S. PLUMARI Transport Theory with a Mean Field at fixed η/s. Effective
More informationMIXED HARMONIC FLOW CORRELATIONS
MIXED HARMONIC FLOW CORRELATIONS RECENT RESULTS ON SYMMETRIC CUMULANTS Matthew Luzum F. Gardim, F. Grassi, ML, J. Noronha-Hostler; arxiv:168.2982 Universidade de São Paulo NBI Mini Workshop 19 September,
More informationHydrodynamical description of ultrarelativistic heavy-ion collisions
Frankfurt Institute for Advanced Studies June 27, 2011 with G. Denicol, E. Molnar, P. Huovinen, D. H. Rischke 1 Fluid dynamics (Navier-Stokes equations) Conservation laws momentum conservation Thermal
More informationHydrodynamic response to initial state fluctuations
University of Jyväskylä, Department of Physics POETIC Jyväskylä 3.9.203 AA-collisions Initial particle/energy production, followed by Hydrodynamic evolution, followed by Freeze-out/Hadron cascade Goal
More informationFlow Harmonic Probability Distribution in Heavy Ion Collision
1/28 Flow Harmonic Probability Distribution in Heavy Ion Collision Seyed Farid Taghavi Institute For Research in Fundamental Sciences (IPM), Tehran, Iran Second Iran & Turkey Joint Conference on LHC Physics
More informationEvent anisotropy at RHIC
Event anisotropy at RHIC Nu Xu - LBNL 1) Introduction 2) Experimental details and 200 GeV results v 2 (m 0, p T, y, b, A) 3) Summary and outlook PHENIX: N. Ajitanand, S. Esumi, R. Lacey, J. Rak PHOBOS:
More informationReview 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 informationInclusive distributions at the LHC as predicted from the DPMJET-III model with chain fusion
Inclusive distributions at the LHC as predicted from the DPMJET-III model with chain fusion F.Bopp, R.Engel, J.Ranft and S.Roesler () DPMJET III () Chain fusion in DPMJET III (3) dn/dη cm distributions
More informationLawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory
Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Title High pt inclusive charged hadron spectra from Au+Au collisions at Sqrt(s_NN)=00 Gev Permalink https://escholarship.org/uc/item/3jp4v8vd
More informationQuark 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 informationHeavy 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 informationEPOS 2 and LHC Results
EPOS 2 and LHC Results Tanguy Pierog, K. Werner, Y. Karpenko Institut für Kernphysik, Karlsruhe, Germany 46th Rencontres de Moriond, QCD, La Thuile, France March the 24th 2011 T. Pierog, KIT - 1/19 Outline
More informationCorrelations and Fluctuations in Nuclear Collisions - Experimental Overview
Correlations and Fluctuations in Nuclear Collisions - Experimental Overview Gunther Roland - MIT Supercomputing RHIC Physics TIFR, Mumbai Dec 5-9 2005 This talk dn/dη/ Pseudorapidity Hadron
More informationOverview* 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 informationAzimuthal anisotropy of the identified charged hadrons in Au+Au collisions at S NN. = GeV at RHIC
Journal of Physics: Conference Series PAPER OPEN ACCESS Azimuthal anisotropy of the identified charged hadrons in Au+Au collisions at S NN = 39-200 GeV at RHIC To cite this article: S S Vdovkina 2017 J.
More informationEvent-by-event distribution of azimuthal asymmetries in ultrarelativistic heavy-ion collisions
Event-by-event distribution of azimuthal asymmetries in ultrarelativistic heavy-ion collisions Hannu Holopainen Frankfurt Institute for Advanced Studies in collaboration with G. S. Denicol, P. Huovinen,
More informationQuark-Gluon Plasma in Proton-Proton Scattering at the LHC?
Non-Peturb QCD, IAP Paris, Klaus WERNER, Subatech, Nantes - Quark-Gluon Plasma in Proton-Proton Scattering at the LHC? Klaus Werner in collaboration with Iu. Karpenko, T. Pierog,
More informationResults 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 informationSoft 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 informationarxiv: v2 [nucl-ex] 8 Sep 2016
An experimental review on elliptic flow of strange and multi-strange hadrons in relativistic heavy ion collisions Shusu Shi 1 1 Key Laboratory of Quarks and Lepton Physics (MOE) and Institute of Particle
More informationJet and bulk observables within a partonic transport approach
Jet and bulk observables within a partonic transport approach Florian Senzel with J. Uphoff, O. Fochler, C. Wesp, Z. Xu and C. Greiner based on Phys.Rev.Lett. 4 (25) 23 Transport meeting, 29.4.25 Outline
More informationPredictions for hadronic observables from. from a simple kinematic model
Predictions for hadronic observables from Pb + Pb collisions at sqrt(s NN ) = 2.76 TeV from a simple kinematic model Tom Humanic Ohio State University WPCF-Kiev September 14, 2010 Outline Motivation &
More informationAdrian Dumitru. pp, pa, AA: - forward dijets - near-side long-range rapidity correlations
Small Small xx QCD: QCD: from from pa/aa pa/aa at at RHIC/LHC RHIC/LHC to to the the eic eic Adrian Dumitru RIKEN-BNL and Baruch College/CUNY AA: dn/dy, det/dy, eccentricity ε pa: forward dn/dpt2 2-point
More informationarxiv: 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 informationParticle correlations in such collision?! N=n(n-1)/2. azimuthal, back-to back, multiplicity... close velocity,
Future of Nuclear Collisions at High Energies Kielce, Poland, October 14-17 2004 Particle correlations in heavy ion collisions Jan Pluta Warsaw University of Technology Faculty of Physics, Heavy Ion Reactions
More informationGlauber modelling in high-energy nuclear collisions. Jeremy Wilkinson
Glauber modelling in high-energy nuclear collisions Jeremy Wilkinson 16/05/2014 1 Introduction: Centrality in Pb-Pb collisions Proton-proton collisions: large multiplicities of charged particles produced
More informationOverview of Quarkonium Production in Heavy-Ion Collisions at LHC
XLV International Symposium on Multiparticle Dynamics (ISMD2015) Wildbad Kreuth, Germany, October 4-9, 2015 Overview of Quarkonium Production in Heavy-Ion Collisions at LHC Byungsik Hong (Korea University)
More informationDynamical 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 informationALICE results on identified particle spectra in p-pb collisions
Workshop on proton-nucleus collisions at the LHC ALICE results on identified particle spectra in p-pb collisions for the ALICE Collaboration Museo Storico della Fisica e Centro Studi e Ricerche Enrico
More informationSoft Physics in Relativistic Heavy Ion Collisions
Soft Physics in Relativistic Heavy Ion Collisions Huichao Song 宋慧超 Peking University Hadron and Nuclear Physics in 2017 KEK, Tsukuba, Japan, Jan.7-10, 2017 Jan. 09, 2017 QGP QGP Hadrons nuclei atom 3
More informationExperimental signatures of perfect fluidity at RHIC. Derek Teaney Arkansas State University
Experimental signatures of perfect fluidity at RHIC Derek Teaney Arkansas State University Extracting Transport from the Heavy Ion Data Derek Teaney Arkansas State University Observation: y There is a
More informationPoS(WPCF2011)012. New results on event-by-event fluctuations in A+A collisions at the CERN SPS. Grzegorz Stefanek for the NA49 Collaboration
New results on eventbyevent fluctuations in AA collisions at the CERN SPS for the NA9 Collaboration Jan Kochanowski University, Kielce, Poland Email: grzegorz.stefanek@pu.kielce.pl The study of central
More informationInvestigation of jet quenching and elliptic flow within a pqcd-based partonic transport model
Investigation of jet quenching and elliptic flow within a pqcd-based partonic transport model Oliver Fochler Z. Xu C. Greiner Institut für Theoretische Physik Goethe Universität Frankfurt Strongly Interacting
More informationReview of collective flow at RHIC and LHC
Review of collective flow at RHIC and LHC Jaap Onderwaater 29 November 2012 J. Onderwaater (EMMI,GSI) Collective flow 29 November 2012 1 / 37 Heavy ion collision stages Outline Heavy ion collisions and
More informationQuarkonia 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 informationQCD Studies with CMS at LHC. Gunther Roland for the Collaboration
QCD Studies with CMS at LHC Gunther Roland for the Collaboration INT Seattle 5/24/2010 First 7 TeV Collisions: March 30th 2010 2 QCD Studies with CMS pp integrated luminosity ~ 10nb -1 n.b. rates for LHC
More informationPredictions for 5.02A TeV Pb+Pb Collisions from A Multi-Phase Transport Model
Predictions for 5.02A TeV Pb+Pb Collisions from A Multi-Phase Transport Model Zi-Wei Lin East Carolina University, Greenville, NC Results are mainly based on G.L. Ma & ZWL, Phys Rev C 93 (2016) /arxiv:1601.08160
More informationStrongly interacting quantum fluids: Experimental status
Strongly interacting quantum fluids: Experimental status Thomas Schaefer North Carolina State University Perfect fluids: The contenders QGP (T=180 MeV) Liquid Helium (T=0.1 mev) Trapped Atoms (T=0.1 nev)
More informationProduction of Charmed Hadrons by Statistical Hadronization of a Quark Gluon Plasma as a proof of deconfinement
Production of Charmed Hadrons by Statistical Hadronization of a Quark Gluon Plasma as a proof of deconfinement statistical hadronization model comparison to RHIC data (also SPS) predictions for LHC comments
More informationA NEARLY PERFECT INK: The quest for the quark-gluon plasma at the Relativistic Heavy Ion Collider
A NEARLY PERFECT INK: The quest for the quark-gluon plasma at the Relativistic Heavy Ion Collider Berndt Mueller (Duke University) LANL Theory Colloquium 2 June 2005 The Road to the Quark-Gluon Plasma
More informationarxiv: 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 informationRecent results from the NA61/SHINE experiment
Recent results from the NA6/SHINE experiment Emil Kaptur for the NA6/SHINE collaboration University of Silesia October 7, 5 of 5 Outline NA6/SHINE experiment Selected results from energy scan (,,, 8, 58
More information(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 information1992 Predictions for RHIC with HIJING
1992 Predictions for RHIC with HIJING HIJING: A MONTE CARLO MODEL FOR MULTIPLE JET PRODUCTION IN P P, P A AND A A COLLISIONS Phys.Rev.D44:3501-3516,1991 GLUON SHADOWING AND JET QUENCHING IN A + A COLLISIONS
More informationBeam energy scan using a viscous hydro+cascade model: an update
Beam energy scan using a viscous hydro+cascade model: an update Iurii KARPENKO Frankfurt Institute for Advanced Studies/ Bogolyubov Institute for heoretical Physics ransport group meeting, December 17,
More informationAnalysis of fixed target collisions with the STAR detector
Analysis of fixed target collisions with the STAR detector Brooke Haag for the STAR Collaboration Hartnell College / University of California, Davis Presented at the Meeting of the California Section of
More informationThe 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 informationarxiv:nucl-ex/ v1 10 May 2004
arxiv:nucl-ex/0405004v1 10 May 2004 Proc. 20th Winter Workshop on Nuclear Dynamics (2003) 000 000 Anisotropic flow at RHIC A. H. Tang 1 for the STAR Collaboration 1 NIKHEF and Brookhaven National Lab,
More informationCollective flow in (anti)proton-proton collision at Tevatron and LHC
Collective flow in (anti)proton-proton collision at Tevatron and LHC Tanguy Pierog, K. Werner, Y. Karpenko, S. Porteboeuf Institut für Kernphysik, Karlsruhe, Germany XLVth Rencontres de Moriond, QCD, La
More informationHOT 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 informationOverview of flow results from ALICE experiment
Overview of flow results from ALICE experiment ShinIchi Esumi for the ALICE collaboration Inst. of Physics, Univ. of Tsukuba contents Multiplicity and transverse momentum distribution Source size measurement
More informationConservation Laws on the Cooper-Frye Surface and Hadronic Rescattering. Hannah Petersen May 11, 2018, ECT*, Trento, Italy
Conservation Laws on the Cooper-Frye Surface and Hadronic Rescattering Hannah Petersen May 11, 2018, ECT*, Trento, Italy Motivation and Outline Hybrid transport+hydrodynamics approaches are successfully
More informationEvent geometrical anisotropy and fluctuation viewed by HBT interferometry
Event geometrical anisotropy and fluctuation viewed by HB interferometry akafumi Niida University of sukuba -- ennoudai, sukuba, Ibaraki 35-857, Japan Abstract Azimuthal angle dependence of the pion source
More informationEnergy 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 informationarxiv:hep-ph/ v3 5 Dec 2005
Acta Phys. Hung. A 19/1 (2005) 000 000 HEAVY ION PHYSICS Rapidity equilibration in d + Au and Au + Au systems arxiv:hep-ph/0509108v3 5 Dec 2005 Georg Wolschin Institut für Theoretische Physik der Universität,
More informationarxiv: v1 [nucl-ex] 12 May 2008
1 Highlights from PHENIX - II arxiv:0805.1636v1 [nucl-ex] 12 May 2008 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Terry C. Awes (for the PHENIX Collaboration ) Oak
More informationIntroduction to Relativistic Heavy Ion Physics
1 Introduction to Relativistic Heavy Ion Physics Lecture 2: Experimental Discoveries Columbia University Reminder- From Lecture 1 2 General arguments suggest that for temperatures T ~ 200 MeV, nuclear
More informationQ 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 informationCollective Dynamics of the p+pb Collisions
Collective Dynamics of the p+pb Collisions Wojciech Broniowski CEA Saclay & UJK Kielce & IFJ PAN Cracow th Workshop on Non-Perturbative QCD Paris, - June [Piotr Bo»ek & WB, PLB 78 () 557, 7 () 5, arxiv:.]
More informationCharmonium production in heavy ion collisions.
Charmonium production in heavy ion collisions. N.S.Topilskaya and A.B.Kurepin INR RAS, Moscow 1. Physical motivaion. 2. Experimental situation. 3. Fixed target suggestion. 3. Summary. N.S.Topilskaya, ISHEPP
More informationQuarkonia and open heavy-flavour production in high multiplicity pp collisions
Quarkonia and open heavy-flavour production in high multiplicity pp collisions Sarah Porteboeuf-Houssais for the ALICE Collaboration QGP France, Etretat, 9-12 Septembre 2013 Physics motivations in the
More informationEvent by Event Flow in ATLAS and CMS
Event by Event Flow in ALAS and CMS Gregor Herten Universität Freiburg, Germany LHCP 2015 St. Petersburg, 31.8.-5.9.2015 Some basic heavy-ion physics terminology 2 Centrality and Glauber Model Centrality
More informationModeling Quark Gluon Plasma Using CHIMERA
Journal of Physics: Conference Series Modeling Quark Gluon Plasma Using CHIMERA o cite this article: Betty Abelev J. Phys.: Conf. Ser. 6 View the article online for updates and enhancements. Related content
More informationAssessment of triangular flow in jet background fluctuations for Au+Au collisions First look at dijet imbalance (A J )
Assessment of triangular flow in jet background fluctuations for Au+Au collisions First look at dijet imbalance (A J ) Wayne State REU 2012 Research Advisor: Joern Putschke Research Undergraduate: Joshua
More informationElliptic 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 informationA Senior Honors Thesis
A Study Using Relativistic Hydrodynamics for Ultrarelativistic Heavy-Ion Collisions: The Quark-Gluon-Plasma to Hadron Phase Transition and LHC Predictions A Senior Honors Thesis Presented in Partial Fulfillment
More informationEnergy Dependence of Multiplicity Fluctuations in Heavy Ion Collisions. Benjamin Lungwitz, IKF Universität Frankfurt for the NA49 collaboration
Energy Dependence of Multiplicity Fluctuations in Heavy Ion Collisions Benjamin Lungwitz, IKF Universität Frankfurt for the NA49 collaboration Outline Introduction Analysis of energy dependence Energy
More informationHagedorn 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 informationannihilation of charm quarks in the plasma
Quarkonia Production suppression vs enhancement quarkonia suppression ingredients and assumptions quarkonia in the QGP confrontation with data quarkonia enhancement ingredients and assumptions annihilation
More informationIndications 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 informationCollective and non-flow correlations in event-by-event hydrodynamics
Collective and non-flow correlations in event-by-event hydrodynamics Institute of Nuclear Physics Kraków WPCF 22-2.9.22 3 -D viscous hydrodynamics T T h /- v 3 [%] 25 2 5 5 2 5 5 2 5 5 ideal, e-b-e η/s=.8,
More informationSmall Collision Systems at RHIC
EPJ Web of Conferences 7, (8) SQM 7 https://doi.org/.5/epjconf/87 Small Collision Systems at RHIC Norbert Novitzky, Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY 79, USA
More informationProspects with Heavy Ions at the LHC
Prospects with Heavy Ions at the LHC The Quark-Gluon Plasma at RHIC & LHC So far at RHIC: Elliptic Flow Near-perfect Fluid High p T Suppression Strongly-coupled QGP R AA! d 2 N AA dydp T d 2 N pp!!! AA
More informationReport from PHENIX. Xiaochun He Georgia State University For the PHENIX Collaboration
Report from PHENIX Xiaochun He Georgia State University For the PHENIX Collaboration Outline PHENIX status New PHENIX Results Jet and π 0 Heavy flavor Direct Photon & Flow 2 PHENIX Data Taking Mission
More informationWhat is a heavy ion? Accelerator terminology: Any ion with A>4, Anything heavier than α-particle
Outline Introduction to Relativistic Heavy Ion Collisions and Heavy Ion Colliders. Production of particles with high transverse momentum. Collective Elliptic Flow Global Observables Particle Physics with
More informationSelected Topics in the Theory of Heavy Ion Collisions Lecture 1
Selected Topics in the Theory of Heavy Ion Collisions Lecture 1 Urs chim Wiedemann CERN Physics Department TH Division Skeikampen, 4 January 2012 Heavy Ion Collisions - Experiments lternating Gradient
More informationPoS(Confinement8)110. Latest Results on High-p t Data and Baryon Production from NA49
Latest Results on High-p t Data and Baryon Production from NA49 for the NA49 Collaboration Institut für Kernphysik, J.W. Goethe Universität, Frankfurt am Main, Germany E-mail: blume@ikf.uni-frankfurt.de
More informationMapping 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