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Turko, L.; Blaschke, D.; Prorok, Dariusz; Berdermann, Jens

doi:10.5506/aphyspolbsupp.5.485

Cited by 19 publications

(20 citation statements)

References 15 publications

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“…According to some lattice calculations for the quark-number susceptibilities there are indications for the existence of hadronic bound states above T c , although this is excluded by other investigations [58] on the lattice. While a definite statement or even a quantitative description is not yet available, one might refer to model studies [59,60] which all give an estimate for the fraction of hadronic bound states by either adjusting their thermodynamic quantities to the ones calculated on the lattice or according to the model ingredients. None of these models is, however, able to reproduce the lattice (off-diagonal) quark-number susceptibilities correctly, which motivated the work in [57], and which are the essential quantities when the existence of hadronic bound states above T c is claimed.…”

Section: Equation Of State and Coupling To The Heavy Quarksmentioning

confidence: 99%

Toward a consistent evolution of the quark-gluon plasma and heavy quarks

et al. 2016

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Heavy-quark observables in ultrarelativistic heavy-ion collisions, like the nuclear modification factor and the elliptic flow, give insight into the mechanisms of high-momentum suppression and low-momentum thermalization of heavy quarks. Here, we present a global study of these two observables within a coupled approach of the heavy-quark propagation in a realistic fluid dynamical medium, MC@sHQ+EPOS2, and compare to experimental data from RHIC and LHC experiments. The heavy quarks scatter elastically and inelastically with the quasiparticles of the quark-gluon plasma (QGP), which are represented consistently with the underlying equation of state. We examine two scenarios: first, we interpret the lattice QCD equation of state as a sum of partonic and hadronic contributions, and second, as a gas of massive partonic quasiparticles. It is observed that independent of their momentum the energy loss of heavy quarks depends strongly on how the lattice QCD equation of state is translated into degrees of freedom of the QGP

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Section: Equation Of State and Coupling To The Heavy Quarksmentioning

confidence: 99%

Toward a consistent evolution of the quark-gluon plasma and heavy quarks

et al. 2016

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“…Masses and widths can be extracted which encode information on the medium modification of mesons by the underlying quark-antiquark substructure. Therefore, the nl-PNJL, and quark (and gluon) models in general, are in an interesting position to properly account for the degrees of freedom in both, the hadron and the QGP phases, with the underlying physical mechanism for the vanishing of hadronic states from the spectrum in the QGP phase being their dissolution in the continuum of scattering states (the Mott effect) [55][56][57][58][59][60][61][62].…”

Section: Introductionmentioning

confidence: 99%

Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models

et al. 2014

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In this paper we detail the thermodynamics of two flavor nonlocal Polyakov-Nambu-Jona-Lasinio models for different parametrizations of the quark interaction regulators. The structure of the model is upgraded in order to allow for terms in the quark selfenergy which violate Lorentz invariance due to the presence of the medium. We examine the critical properties, the phase diagram as well as the equation of state. Furthermore, some aspects of the Mott effect for pions and sigma mesons are discussed explicitly within a nonlocal Polyakov-Nambu-Jona-Lasinio model. In particular, we continued the meson polarization function in the complex energy plane and under certain approximations, we were able to extract the imaginary part as a function of the meson energy. We were not able to calculate the dynamical meson mass, and therefore resorted to a technical study of the temperature dependence of the meson width by replacing the meson energy with the temperature dependent spatial meson mass. Our results show that while the temperature behavior of the meson widths is qualitatively the same for a wide class of covariant regulators, the special case where the nonlocal interactions are introduced via the instanton liquid model singles out with a drastically different behavior.

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“…A mathematically similar description can be obtained using the Mott transition analogy [92][93][94][95][96][97][98]. Hadronic spectral functions, as all spectral functions, consist of a quasiparticle peak and a continuum part.…”

Section: Particles Spectral Function and Thermodynamicsmentioning

confidence: 99%

Nuclear and quark matter at high temperature

2017

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Abstract.We review important ideas on nuclear and quark matter description on the basis of hightemperature field theory concepts, like resummation, dimensional reduction, interaction scale separation and spectral function modification in media. Statistical and thermodynamical concepts are spotted in the light of these methods concentrating on the -partially still open-problems of the hadronization process.

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Abstract: A combined effective model reproducing the equation of state of hadronic matter as obtained in recent lattice QCD simulations is presented.

Cited by 19 publications

References 15 publications

Toward a consistent evolution of the quark-gluon plasma and heavy quarks

Toward a consistent evolution of the quark-gluon plasma and heavy quarks

Medium induced Lorentz symmetry breaking effects in nonlocal Polyakov–Nambu–Jona-Lasinio models

Nuclear and quark matter at high temperature

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