Large Momenta Fluctuations Of Charm Quarks In The Quark-Gluon Plasma

Abstract

We show that large fluctuations of D mesons kinetic energy (or momentum) distributions might be a signature of a phase transition to the quark gluon plasma (QGP). In particular, a jump in the variance of the momenta or kinetic energy, as a function of a control parameter (temperature or Fermi energy at finite baryon densities) might be a signature for a first order phase transition to the QGP. This behaviour is completely consistent with the order parameter defined for a system of interacting quarks at zero temperature and finite baryon densities which shows a jump in correspondance to a first order phase transition to the QGP. The $J/\Psi$ shows exactly the same behavior of the order parameter and of the variance of the D mesons. We discuss implications for relativistic heavy ion collisions within the framework of a transport model and possible hints for experimental data.

arXiv comment4 pages 3 figures

References in corpus (5)

• Event-by-Event Fluctuations in Heavy Ion Collisions and the QCD Critical Point
• Constraint Molecular Dynamics approach to Fermionic systems
• Experimental Signals of Phase Transition
• Constrained Molecular Dynamics simulation of the Quark-Gluon Plasma
• Color Dynamics On Phase Space

Cited by in corpus (9)

• Density and Temperature of Fermions from Quantum Fluctuations
• Density and Temperature of Bosons from Quantum Fluctuations
• Higher Order Corrections to Density and Temperature of Fermions from Quantum Fluctuations
• Mean Field Effects In The Quark-Gluon Plasma
• Coulomb corrections to density and temperature of bosons in heavy ion collisions
• Kinetic description of hadron-hadron collisions
• Virial Expansion of the Nuclear Equation of State
• Coulomb field correction due to virtual $e^{+}{e}^{-}$ production in heavy ion collisions
• Hadronization from color interactions