Results 61 to 70 of about 1,311 (183)

Dissipative phenomena in quark-gluon plasmas [PDF]

Physical Review D, 1985
Transport coefficients of small-chemical-potential quark-gluon plasmas are estimated and dissipative corrections to the scaling hydrodynamic equations for ultrarelativistic nuclear collisions are studied. The absence of heat-conduction phenomena is clarified. Lower and upper bounds on the shear-viscosity coefficient are derived.
Danielewicz, P., Gyulassy, M.
openaire   +3 more sources

The Quest for the Quark‐Gluon Plasma From the Perspective of Dynamical Models of Relativistic Heavy‐Ion Collisions

Astronomische Nachrichten, Volume 346, Issue 7-8, September 2025.
ABSTRACT The physics of heavy‐ion collisions is one of the most exciting and challenging directions of science for the last four decades. On the theoretical side one deals with a non‐abelian field theory, while on the experimental side today's largest accelerators are needed to enable these studies.
Marcus Bleicher, Elena Bratkovskaya
wiley   +1 more source

Viscous QCD medium effects on the bottom quark transport coefficients

European Physical Journal C: Particles and Fields, 2023
The bottom quark transport coefficients, i.e., drag and diffusion coefficients, have been studied for the collisional and soft gluon radiative processes within the viscous QCD medium.
Adiba Shaikh, Sadhana Dash, Basanta K. Nandi   +2 more
doaj   +1 more source

The quark–gluon plasma in equilibrium [PDF]

Progress in Particle and Nuclear Physics, 2004
Our current knowledge of the quark-gluon plasma in thermodynamical equilibrium is reviewed. The phase diagram of strongly interacting matter is discussed, with emphasis on the quark-hadron phase transition and the color-superconducting phases of quark matter.
openaire   +2 more sources

Confinement of Fermions in Tachyon Matter at Finite Temperature

Advances in High Energy Physics, 2021
We study a phenomenological model that mimics the characteristics of QCD theory at finite temperature. The model involves fermions coupled with a modified Abelian gauge field in a tachyon matter.
Adamu Issifu, Julio C. M. Rocha, Francisco A. Brito   +2 more
doaj   +1 more source

Electrical conductivity of the quark-gluon plasma from the low energy limit of photon and dilepton spectra

Physics Letters B, 2023
Fluid dynamic considerations are used to determine the electric current spectral density in the regime of small energies and momenta. The spectral density in this regime is parameterized by the electric conductivity, the charge susceptibility, and the ...
Stefan Floerchinger, Charlotte Gebhardt, Klaus Reygers   +2 more
doaj   +1 more source

The flavours of the quark–gluon plasma [PDF]

Journal of Physics G: Nuclear and Particle Physics, 2009
Quarks of other flavours than up and down, i.e. $s$, $c$, and $b$ quarks, have been long recognized as effective probes of the structure of hot QCD matter. In this talk, I review some of the motivations for their investigation and discuss the salient results obtained so far, with a focus on the results from the Relativistic Heavy Ion Collider (RHIC ...
openaire   +2 more sources

Partition Functions and Mass Action Constants of Plasmas of Light Elements at Higher Temperatures

Contributions to Plasma Physics, Volume 65, Issue 7, August 2025.
ABSTRACT We first analyze the relations between the work of Planck and Klimontovich and show that Klimontovich's kinetic theory of non‐ideal plasmas confirms Planck's partition function for the hydrogen plasma. We discuss and check the Planck‐Brillouin‐Larkin (PBL) expressions for Hydrogen with PIMC calculations and derive new partition functions and ...
Werner Ebeling, Gerd Röpke
wiley   +1 more source

Maximum Mass Limit of Generalized MIT Compact Star: A Theoretical Study of Thin Shell Dynamics and Gravitational Lensing

Fortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract In this study, the properties, equilibrium, and stability of compact objects within the framework of teleparallel gravity with the generalized MIT bag model are investigated. By incorporating the modified field equations, the influence of the generalized bag constant on the structure and physical characteristics of quark stars and neutron ...
Sayantan Ghosh, Sneha Pradhan, Pradyumn Kumar Sahoo   +2 more
wiley   +1 more source

Far-off-equilibrium early-stage dynamics in high-energy nuclear collisions [PDF]

EPJ Web of Conferences
We explore the far-off-equilibrium aspects of the (1+1)-dimensional early-stage evolution of a weakly-coupled quark-gluon plasma using kinetic theory and hydrodynamics.
Chattopadhyay Chandrodoy, Heinz Ulrich, Schäfer Thomas   +2 more
doaj   +1 more source