Chemical Equilibration at the Hagedorn Temperature Jaki Noronha-Hostler Collaborators: C. Greiner and I. Shovkovy.

Slides:

Advertisements

Similar presentations

Multi-strange Hadron v2 and Partonic Collectivity

Advertisements

, CZE ISMD2005 Zhiming LI 11/08/ and collisions at GeV Entropy analysis in and collisions at GeV Zhiming LI (For the NA22 Collaboration)

Physics Results of the NA49 exp. on Nucleus – Nucleus Collisions at SPS Energies P. Christakoglou, A. Petridis, M. Vassiliou Athens University HEP2006,

Effects of Bulk Viscosity on p T -Spectra and Elliptic Flow Parameter Akihiko Monnai Department of Physics, The University of Tokyo, Japan Collaborator:

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.

Phase transition of hadronic matter in a non-equilibrium approach Graduate Days, Frankfurt, , Hannah Petersen, Universität Frankfurt.

DNP03, Tucson, Oct 29, Kai Schweda Lawrence Berkeley National Laboratory for the STAR collaboration Hadron Yields, Hadrochemistry, and Hadronization.

STAR Patricia Fachini 1 Brookhaven National Laboratory Motivation Data Analysis Results Conclusions Resonance Production in Au+Au and p+p Collisions at.

1 Baryonic Resonance Why resonances and why  * ? How do we search for them ? What did we learn so far? What else can we do in the.

Enhancement of hadronic resonances in RHI collisions We explain the relatively high yield of charged Σ ± (1385) reported by STAR We show if we have initial.

Charm and bottom flavored hadrons production from strangeness rich quark gluon plasma hadronization Inga Kuznetsova and Johann Rafelski Department of Physics,

Nu XuInternational Conference on Strangeness in Quark Matter, UCLA, March , 20061/20 Search for Partonic EoS in High-Energy Nuclear Collisions Nu.

Hagedorn states and Thermalization DM2010, High Density Nuclear Matter, Stellenbosch, South Africa (courtesy L. Ferroni)

Marcus Bleicher, WWND 2008 A fully integrated (3+1) dimensional Hydro + Boltzmann Hybrid Approach Marcus Bleicher Institut für Theoretische Physik Goethe.

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

Resonance Dynamics in Heavy Ion Collisions 22nd Winter Workshop on Nuclear Dynamics , La Jolla, California Sascha Vogel, Marcus Bleicher UrQMD.

Recent Developments in THERMUS “The Wonders of Z ” Spencer Wheaton Dept of Physics University of Cape Town.

Formation and decay of resonances Motivation Formation time Resonance Correlation Summary and Future Plans Motivation Formation time Resonance Correlation.

1 Statistical Models and STAR’s Strange Data Sevil Salur Yale University for the STAR Collaboration.

Hadronic Resonances in Heavy-Ion Collisions at ALICE A.G. Knospe for the ALICE Collaboration The University of Texas at Austin 25 July 2013.

Dilepton production in HIC at RHIC Energy Haojie Xu( 徐浩洁 ) In collaboration with H. Chen, X. Dong, Q. Wang Hadron2011, WeiHai Haojie Xu( 徐浩洁 )

Photons and Dileptons at LHC Rainer Fries Texas A&M University & RIKEN BNL Heavy Ion Collisions at the LHC: Last Call for Predictions CERN, June 1, 2007.

Sept WPCF-2008 Initial conditions and space-time scales in relativistic heavy ion collisions Yu. Sinyukov, BITP, Kiev Based on: Yu.S., I. Karpenko,

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

Revealing Baryon Number Fluctuations in Heavy Ion Collisions Masakiyo Kitazawa (Osaka U.) MK, M. Asakawa, arXiv: [nucl-th]

M. Beitel, K. Gallmeister, CG, arXiv: in collaboration with: M. Beitel, K. Gallmeister and J. Noronha-Hostler - history of Hagedorn States - nuclear.

Thermal Production of particles at RHIC (Test of Chemical Freeze-out at RHIC) Jun Takahashi for the STAR collaboration SQM2008, Beijing, China.

Two Particle Correlations and Viscosity in Heavy Ion Collisions Monika Sharma for the Wayne State University STAR Collaboration Outline: Motivation Measurement.

In-Kwon YOO Pusan National University Busan, Republic of KOREA SPS Results Review.

STRING PERCOLATION AND THE GLASMA C.Pajares Dept Particle Physics and IGFAE University Santiago de Compostela CERN The first heavy ion collisions at the.

Matter System Size and Energy Dependence of Strangeness Production Sevil Salur Yale University for the STAR Collaboration.

Jaipur February 2008 Quark Matter 2008 Initial conditions and space-time scales in relativistic heavy ion collisions Yu. Sinyukov, BITP, Kiev (with participation.

Study of the QCD Phase Structure through High Energy Heavy Ion Collisions Bedanga Mohanty National Institute of Science Education and Research (NISER)

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

Statistical Model Predictions for p+p and Pb+Pb Collisions at LHC Ingrid Kraus Nikhef and TU Darmstadt.

Do small systems equilibrate chemically? Ingrid Kraus TU Darmstadt.

EXPERIMENTAL EVIDENCE FOR HADRONIC DECONFINEMENT In p-p Collisions at 1.8 TeV * L. Gutay - 1 * Phys. Lett. B528(2002)43-48 (FNAL, E-735 Collaboration Purdue,

Introduction The statistical model approach is established by analysis of particle ratios of the high energy heavy ion collisions in GSI-SIS to CERN-SPS.

Recent Charm Measurements through Hadronic Decay Channels with STAR at RHIC in 200 GeV Cu+Cu Collisions Stephen Baumgart for the STAR Collaboration, Yale.

Energy Dependence of ϕ -meson Production and Elliptic Flow in Au+Au Collisions at STAR Md. Nasim (for the STAR collaboration) NISER, Bhubaneswar, India.

The importance of multiparticle collisions in heavy ion reactions C. Greiner The Physics of High Baryon Density IPHC Strasbourg, Sept Johann Wolfgang.

System size dependence of freeze-out properties at RHIC Quark Matter 2006 Shanghai-China Nov System size dependence of freeze-out properties.

HIRSCHEGG, January , 2005 Nu Xu //Talk/2005/01Hirschegg05// 1 / 24 Search for Partonic EoS in High-Energy Collisions Nu Xu Lawrence Berkeley National.

PHOTONS AND EVOLUTION OF A CHEMICALLY EQUILIBRATING AND EXPANDING QGP AT FINITE BARYON DENSITY Shanghai Institute of Applied Physics Jiali Long, Zejun.

Christoph Blume University of Heidelberg

A Blast-wave Model with Two Freeze-outs Kang Seog Lee (Chonnam Nat’l Univ.)  Chemical and thermal analysis, done in a single model HIM

9 th June 2008 Seminar at UC Riverside Probing the QCD Phase Diagram Aneta Iordanova.

Results from an Integrated Boltzmann+Hydrodynamics Approach WPCF 2008, Krakau, Jan Steinheimer-Froschauer, Universität Frankfurt.

Two freeze-out model for the hadrons produced in the Relativistic Heavy-Ion Collisions. New Frontiers in QCD 28 Oct, 2011, Yonsei Univ., Seoul, Korea Suk.

School of Collective Dynamics in High-Energy CollisionsLevente Molnar, Purdue University 1 Effect of resonance decays on the extracted kinetic freeze-out.

Olena Linnyk Charmonium in heavy ion collisions 16 July 2007.

R. Lednicky: Joint Institute for Nuclear Research, Dubna, Russia I.P. Lokhtin, A.M. Snigirev, L.V. Malinina: Moscow State University, Institute of Nuclear.

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

Christina Markert Hot Quarks, Sardinia, Mai Christina Markert Kent State University Motivation Resonance in hadronic phase Time R AA and R dAu Elliptic.

Inga Kuznetsova Department of Physics, University of Arizona Workshop on Excited Hadronic States and the Deconfinement Transition February 23-25, 2011.

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.

Charged and Neutral Kaon correlations in Au-Au Collisions at sqrt(s_NN) = 200 GeV using the solenoidal tracker at RHIC (STAR) Selemon Bekele The Ohio State.

Helmut Oeschler Darmstadt University of Technology Transition from Baryonic to Mesonic Freeze Out SQM2006, March 28 th, 2006.

QM08, Jaipur, 9 th February, 2008 Raghunath Sahoo Saturation of E T /N ch and Freeze-out Criteria in Heavy Ion Collisions Raghunath Sahoo Institute of.

Christina MarkertHirschegg, Jan 16-22, Resonance Production in Heavy Ion Collisions Christina Markert, Kent State University Resonances in Medium.

Christina Markert 22 nd Winter Workshop, San Diego, March Christina Markert Kent State University Resonance Production in RHIC collisions Motivation.

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

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.

R. Lacey, SUNY Stony Brook 1 Arkadij Taranenko XVIII Baldin ISHEPP September 25-30, JINR Dubna Nuclear Chemistry Group SUNY Stony Brook, USA Scaling Properties.

What do the scaling characteristics of elliptic flow reveal about the properties of the matter at RHIC ? Michael Issah Stony Brook University for the PHENIX.

1 Strange Resonance Production in p+p and Au+Au Collisions at RHIC energies. Christina Markert, Yale University for the STAR Collaboration QM2004,

ENERGY AND SYSTEM SIZE DEPENDENCE OF CHEMICAL FREEZE-OUT

Summary Model Data from RHIC experiments Introduction

Dipartimento Interateneo di Fisica, Bari (Italy)

Presentation transcript:

Chemical Equilibration at the Hagedorn Temperature Jaki Noronha-Hostler Collaborators: C. Greiner and I. Shovkovy

Outline Motivation: understanding chemical freeze-out in heavy ion collisions –Hagedorn Resonances Master Equations for the decay –Parameters Estimates of Equilibration times –Baryon anti-baryon decay widths Conclusions and Outlook

Motivation Standard hadron gas: Kapusta and Shovkovy, Phys. Rev. C 68, (2003) Greiner and Leupold, J. Phys. G 27, L95 (2001) Huovinen and Kapusta, Phys. Rev. C 69, (2004) Some suggest long time scales imply that the hadrons are “born in equilibrium” –Heinz,Stock, Becattini… - chemical eq. time Can’t explain apparent equilibrium

Production of anti-baryons production detailed balance annihilation rate annihilation rate chemical equilibration time Rapp and Shuryak, PRL 86, 2980 (2001) Greiner and Leupold, J. Phys. G 27, L95 (2001)

Baryon anti-baryon production lower by a factor of 3-4 Can be produced through where HS are mesonic Hagedorn resonances with time scales of  =1-3 fm/c. –Greiner, Koch-Steinheimer, Liu, Shovkovy, and Stoecker Motivation Huovinen and Kapusta

Hagedorn Resonances In the 1960’s Hagedorn found a fit for an exponentially growing mass spectrum Provides extra degrees of freedom near the critical temperature to “push” hadrons into equilibrium

Master Equations for the decay master equation master equation

Parameters Hagedorn States (mesonic, non-strange) M=2-7 GeV Branching Ratios –Gaussian distribution: Decay Widths Hammer ‘72 Future: microcanonical model Ranges from  i = MeV

Estimates of Equilibration times: HS $ nπ Case 1: Pions are held in equilibrium Case 2: Hagedorn States are held in equilibrium

Estimates of Equilibration times: HS $ nπ Case 3: Both are out of equilibrium –Quasi-equilibrium- when the right hand side goes to zero before full equilibrium is reached. = 0 (Quasi-equilibrium)

Estimates of Equilibration times: HS $ nπ Quasi-equlibrium is reached on the time scales of Case 1 and Case 2 Because resonances decay into many pions a small deviation of the pions from equilibrium makes it more difficult for the resonances to reach equilibrium

Baryon anti-Baryon decay widths (Fuming Liu)

Estimates of Equilibration times: Case 1: Pions are held in equilibrium Reminder: HS appear only near T c!

Estimates of Equilibration times: Case 2: Hagedorn States are held in equilibrium Case 3: Pions and Hagedorn States are held in equilibrium

Estimates of Equilibration times: Case 4: All are out of equilibrium

Conclusions and Outlook Our preliminary results and time scale estimates indicate that baryon anti-baryon pairs can be born out of equilibrium. Fully understand time scales when all particles are out of equilibrium Include a Bjorken expansion to observe the fireball cooling over time (already done) Improve branching ratios by using a microcanonical model Include non-zero strangeness… in the baryon anti-baryon part