Dynamical phase trajectories for relativistic nuclear collisions

Arsene, I. C.; Bravina, L.; Cassing, W.; Ivanov, Yu. B.; Larionov, A. B.; Randrup, J.; Russkikh, V. N.; Тонеев, В.Д.; Zeeb, G.; Zschiesche, D.

doi:10.1103/physrevc.75.034902

Cited by 116 publications

(137 citation statements)

References 48 publications

(53 reference statements)

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“…Thus, it is reasonable to consider evolutions of the matter in the central region of the fireball, as it was done in Ref. [27]. Similarly to that it has been done in Ref.…”

Section: Phase Evolution and Effective Freeze-outmentioning

confidence: 92%

“…Similarly to that it has been done in Ref. [27], it is useful to study trajectories of the matter in the central box placed around the origin r = (0, 0, 0) in the frame of equal velocities of colliding nuclei: |x| ≤ 2 fm, |y| ≤ 2 fm and |z| ≤ γ cm 2 fm, where γ cm is Lorentz factor associated with the initial nuclear motion in the c.m. frame.…”

Section: Phase Evolution and Effective Freeze-outmentioning

confidence: 99%

“…Contrary to Ref. [27], I consider these trajectories in terms of temperature (T ) and baryon chemical potential (µ B ). Only expansion stages of the fireball evolution are considered because at these stages the system is closer to equilibrium than at early stages and hence the above thermodynamic quantities are better defined.…”

Section: Phase Evolution and Effective Freeze-outmentioning

confidence: 99%

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Phase evolution and freeze-out within alternative scenarios of relativistic heavy-ion collisions

Ivanov

2013

Physics Letters B

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Global evolution of the matter in relativistic collisions of heavy nuclei and the resulting global freeze-out parameters are analyzed in a wide range of incident energies 2.7 GeV ≤ √ sNN ≤ 39GeV. The analysis is performed within the three-fluid model employing three different equations of state (EoS): a purely hadronic EoS, an EoS with the first-order phase transition and that with a smooth crossover transition. Global freeze-out parameters deduced from experimental data within the statistical model are well reproduced within the crossover scenario. The 1st-order-transition scenario is slightly less successful. The worst reproduction is found within the purely hadronic scenario. These findings make a link between the EoS and results of the statistical model, and indicate that deconfinement onset occurs at √ sNN ∼ > 5 GeV.

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“…Thus, it is reasonable to consider evolutions of the matter in the central region of the fireball, as it was done in Ref. [27]. Similarly to that it has been done in Ref.…”

Section: Phase Evolution and Effective Freeze-outmentioning

confidence: 92%

Section: Phase Evolution and Effective Freeze-outmentioning

confidence: 99%

Section: Phase Evolution and Effective Freeze-outmentioning

confidence: 99%

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Phase evolution and freeze-out within alternative scenarios of relativistic heavy-ion collisions

Ivanov

2013

Physics Letters B

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“…Similarly to Ref. [37], the figure displays dynamical trajectories of the matter in the central box placed around the origin r = (0, 0, 0) in the frame of equal velocities of colliding nuclei. Initially, the colliding nuclei are placed symmetrically with respect to the origin r = (0, 0, 0) along z axis which is the direction of the beam.…”

Section: The 3fd Modelmentioning

confidence: 96%

Elliptic flow in heavy-ion collisions at energiessNN=2.7–39GeV

Ivanov

Soldatov

2015

Phys. Rev. C

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The transverse-momentum integrated elliptic flow of charged particles at midrapidity, v2(charged), and that of identified hadrons from Au+Au collisions are computed in a wide range of incident energies 2.7 GeV ≤ √ sNN ≤ 39 GeV. The simulations are performed within a three-fluid model employing three different equations of state (EoS's): a purely hadronic EoS and two versions of the EoS involving the deconfinement transition-a first-order phase transition and a smooth crossover one. The present simulations demonstrate low sensitivity of v2(charged) to the EoS. All considered scenarios equally well reproduce recent STAR data on v2(charged) for mid-central Au+Au collisions and properly describe its change of sign at the incident energy decrease below √ sNN ≈ 3.5 GeV.The predicted integrated elliptic flow of various species exhibits a stronger dependence on the EoS. A noticeable sensitivity to the EoS is found for anti-baryons and, to a lesser extent, for K − mesons. In particular, the v2 excitation functions of anti-baryons exhibit a non-monotonicity within the deconfinement scenarios that was predicted by Kolb, Sollfrank and Heinz. However, low multiplicities of anti-baryons at √ sNN ≤ 10 GeV result in large fluctuations of their v2 which may wash out this non-monotonicity.

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“…First results of the PHSD approach for dynamical phase trajectories in central Au+Au collisions have been presented in Ref. [37].…”

Section: Introductionmentioning

confidence: 99%

Dynamical quasiparticles properties and effective interactions in the sQGP

2007

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Dynamical quasiparticle properties are determined from lattice QCD along the line of the Peshier model for the running strong coupling constant in case of three light flavors. By separating time-like and space-like quantities in the number density and energy density the effective degrees of freedom in the gluon and quark sector may be specified from the time-like densities. The space-like parts of the energy densities are identified with interaction energy (or potential energy) densities. By using the timelike parton densities (or scalar densities) as independent degrees of freedom -instead of the temperature T and chemical potential µ q as Lagrange parameters -variations of the potential energy densities with respect to the time-like gluon and/or fermion densities lead to effective mean-fields for time-like gluons and quarks as well as to effective gluon-gluon, quark-gluon and quark-quark (quark-antiquark) interactions. The latter dynamical quantities are found to be approximately independent on the quark chemical potential µ q and thus well suited for an inplementation in offshell parton transport approaches. Results from the dynamical quasiparticle model (DQPM) in case of two dynamical light quark flavors are compared to lattice QCD calculations for the net quark density ρ q (T, µ q ) as well as for the 'back-to-back' differential dilepton production rate by q −q annihilation. The DQPM is found to pass the independent tests.

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Dynamical phase trajectories for relativistic nuclear collisions

Cited by 116 publications

References 48 publications

Phase evolution and freeze-out within alternative scenarios of relativistic heavy-ion collisions

Phase evolution and freeze-out within alternative scenarios of relativistic heavy-ion collisions

Elliptic flow in heavy-ion collisions at energiessNN=2.7–39GeV

Dynamical quasiparticles properties and effective interactions in the sQGP

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