DQPM

Dynamical Quasi-Particle Model

A phenomenological model for the strongly interacting quark-gluon plasma in terms of effective off-shell quarks and gluons.

About DQPM

The Dynamical Quasi-Particle Model (DQPM) is a phenomenological model that describes the quark-gluon plasma (QGP) in terms of strongly interacting partonic degrees of freedom: effective quarks and gluons.

Early concepts of the QGP were guided by the idea of a weakly interacting system of massless partons that might be described by perturbative QCD (pQCD). However, experimental observations have repeatedly shown that the QGP medium is, instead, strongly interacting.

The DQPM reproduces non-perturbative features of the QGP using a propagator-based treatment (2PI) of massive off-shell partons that accounts for both finite temperature and chemical potential. Complex self-energies for partonic degrees of freedom are determined by fitting lattice-QCD calculations in thermal equilibrium.

The DQPM has been incorporated into the PHSD approach, based on Kadanoff-Baym off-shell dynamics, for the description of the partonic phase and hadronization, leading to a successful description of a large variety of experimental data.

Publications

Selected DQPM publications and thesis references from the DQPM collaboration page.

The Hot non-perturbative gluon plasma is an almost ideal colored liquid

A. Peshier and W. Cassing

Phys. Rev. Lett. 94, 172301 (2005)

arXiv

QCD thermodynamics and confinement from a dynamical quasiparticle point of view

W. Cassing

Nucl. Phys. A 791, 365-381 (2007)

arXiv

Dynamical quasiparticles properties and effective interactions in the sQGP

W. Cassing

Nucl. Phys. A 795, 70-97 (2007)

arXiv

From Kadanoff-Baym dynamics to off-shell parton transport

W. Cassing

Eur. Phys. J. ST 168, 3-87 (2009)

arXiv

Electrical Conductivity of Hot QCD Matter

W. Cassing et al.

Phys. Rev. Lett. 110, 182301 (2013)

arXiv

Microcausality in strongly interacting fields

L. Rauber and W. Cassing

Phys. Rev. D 89, 065008 (2014)

arXiv

Dynamical equilibration of strongly interacting "infinite" parton matter

V. Ozvenchuk et al.

Phys. Rev. C 87, 024901 (2013)

arXiv

Shear and bulk viscosities of strongly interacting "infinite" parton-hadron matter

V. Ozvenchuk et al.

Phys. Rev. C 87, 064903 (2013)

arXiv

Electric and magnetic response of hot QCD matter

T. Steinert and W. Cassing

Phys. Rev. C 89, 035203 (2014)

arXiv

Covariant interacting Hadron-Resonance Gas model

T. Steinert and W. Cassing

Phys. Rev. C 98, 014908 (2018)

arXiv

Collisional processes of on-shell and off-shell heavy quarks

H. Berrehrah et al.

Phys. Rev. C 89, 054901 (2014)

arXiv

Dynamical collisional energy loss and transport properties of heavy quarks

H. Berrehrah et al.

Phys. Rev. C 90, 064906 (2014)

arXiv

Transport coefficients of heavy quarks around Tc at finite quark chemical potential

H. Berrehrah et al.

Phys. Rev. C 90, 051901 (2014)

arXiv

Heavy quark scattering and quenching in a QCD medium

H. Berrehrah et al.

Phys. Rev. C 91, 054902 (2015)

arXiv

Quark susceptibility in a generalized dynamical quasiparticle model

H. Berrehrah et al.

Phys. Rev. C 93, 044914 (2016)

arXiv

A dynamical quasiparticle approach for the QGP bulk and transport properties

H. Berrehrah et al.

Int. J. Mod. Phys. E 25, 1642003 (2016)

arXiv

Exploring the partonic phase at finite chemical potential within an extended off-shell transport approach

P. Moreau et al.

Phys. Rev. C 100, 014911 (2019)

arXiv

Transport coefficients for the hot quarkgluon plasma at finite chemical potential

O. Soloveva et al.

Phys. Rev. C 101, 045203 (2020)

arXiv

Shear viscosity and electric conductivity of a hot and dense QGP with a chiral phase transition

O. Soloveva et al.

Phys. Rev. C 103, 054901 (2021)

arXiv

Diffusion coefficient matrix of the strongly interacting quark-gluon plasma

J. A. Fotakis et al.

Phys. Rev. D 104, 034014 (2021)

arXiv

Transport properties and equation-of-state of hot and dense QGP matter near the critical endpoint

O. Soloveva et al.

Phys. Rev. D 105, 054011 (2022)

arXiv

Extraction of the microscopic properties of quasiparticles using deep neural networks

O. Soloveva et al.

Phys. Rev. C 110, 034908 (2024)

arXiv

Exploring jet transport coefficients by elastic scattering in the strongly interacting quark-gluon plasma

I. Grishmanovskii et al.

Phys. Rev. C 106, 014903 (2022)

arXiv

Inelastic and elastic parton scattering in the strongly interacting quark-gluon plasma

I. Grishmanovskii et al.

Phys. Rev. C 109, 024911 (2024)

arXiv

Jet transport coefficients by elastic and radiative scatterings

I. Grishmanovskii et al.

Phys. Rev. C 110, 014908 (2024)

arXiv

Transport coefficients of heavy quarks by elastic and radiative scatterings

I. Grishmanovskii et al.

Phys. Rev. D 112, 014042 (2025)

arXiv

PhD Theses

The QCD phase diagram within effective models, T. Steinert, PhD thesis, U. Giessen (2018).
Transport properties of the strongly-interacting Quark-Gluon plasma, O. Soloveva, PhD thesis, Goethe U. (2022).
Attenuation of jet partons in strongly interacting quark-gluon plasma, I. Grishmanovskii, PhD thesis, Goethe U. (2024).

Talks

No dedicated talks list is currently provided in the DQPM source site.

You can browse PHSD talks here: PHSD Talks.