Hadronic fluctuations in the QGP

Abstract

We analyze fluctuations of quark number and electric charge, in 2-flavour QCD at finite temperature and vanishing net baryon number density. In the hadronic phase we find that an enhancement of charge fluctuations arises from contributions of doubly charged hadrons to the thermodynamics. The rapid suppression of fluctuations seen in the high temperature phase suggests that in the QGP quark number and electric charge are predominantly carried by quasi-particles with the quantum numbers of quarks.

4 pages, 6 EPS-files, talk presented at Quark Matter 2005, Budapest

References in corpus (8)

• Quark Gluon Plasma an Color Glass Condensate at RHIC? The perspective from the BRAHMS experiment
• Thermodynamics of Two Flavor QCD to Sixth Order in Quark Chemical Potential
• Towards a Theory of Binary Bound States in the Quark-Gluon Plasma
• Hadron Resonance Mass Spectrum and Lattice QCD Thermodynamics
• Thermodynamics at Non-Zero Baryon Number Density: A Comparison of Lattice and Hadron Resonance Gas Model Calculations
• A Lattice Calculation of Thermal Dilepton Rates
• Spatial and Temporal Hadron Correlators below and above the Chiral Phase Transition
• Deconfinement and Quarkonium Suppression

Cited by in corpus (34)

• The Physics of Glueballs
• Vacuum fluctuations and the thermodynamics of chiral models
• The renormalization group and quark number fluctuations in the Polyakov loop extended quark-meson model at finite baryon density
• Meson fluctuations and thermodynamics of the Polyakov loop extended quark-meson model
• Quark Number Fluctuations in a Chiral Model at Finite Baryon Chemical Potential
• Relativistic nuclear collisions: Establishing a non-critical baseline for fluctuation measurements
• Thermodynamical second-order hydrodynamic coefficients
• Baryon number fluctuations in chiral effective models and their phenomenological implications
• Fluctuations and Correlations of Conserved Charges in QCD at Finite Temperature with Effective Models
• Kurtosis and compressibility near the chiral phase transition
• Effects of kinematic cuts on net-electric charge fluctuations
• Net-charge probability distributions in heavy ion collisions at chemical freeze-out
• Polyakov loop fluctuations and deconfinement in the limit of heavy quarks
• The Van-der-Waals Gas EOS for the Lorentz Contracted Spheres
• Flavor Diagonal and Off-Diagonal Susceptibilities in a Quasiparticle Model of the Quark-Gluon Plasma
• Fluctuations and correlations of hot QCD matter in an external magnetic field
• The diagonal and off-diagonal quark number susceptibility of high temperature and finite density QCD
• Quarkonia and Quark Drip Lines in Quark-Gluon Plasma
• Exploring Dense and Cold QCD in Magnetic Fields
• Glueball enhancement by color de-confinement
• Net baryon number fluctuations across the chiral phase transition at finite density in the strong coupling lattice QCD
• Interplay between chiral dynamics and repulsive interactions
• Quasi-Particle Degrees of Freedom versus the Perfect Fluid as Descriptors of the Quark-Gluon Plasma
• Nuclear and Quark Matter at High Temperature
• Charged-particle multiplicity fluctuations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• QCD at High Temperature : Results from Lattice Simulations with an Imaginary mu
• Fluctuations of conserved charges, chiral spin symmetry and deconfinement in an SU(2)_color subgroup of SU(3)_color above T_c
• Probing Quarkonium Diffusion in a Magnetized Quark-Gluon Plasma
• Probing the QCD phase structure using event-by-event fluctuations
• Pion Mass Shift and the Kinetic Freeze Out Process
• Hotter, Denser, Faster, Smaller...and Nearly-Perfect: What's the matter at RHIC?
• A finite box as a tool to distinguish free quarks from confinement at high temperatures
• Implications of correlations and fluctuations in small systems
• Imprints of clustering in multiplicity fluctuations