Results 81 to 90 of about 71,581 (249)

Heavy quark diffusion in an overoccupied gluon plasma [PDF]

Journal of High Energy Physics, 2020
We extract the heavy-quark diffusion coefficient κ and the resulting momentum broadening 〈p2〉 in a far-from-equilibrium non-Abelian plasma. We find several features in the time dependence of the momentum broadening: a short initial rapid growth of 〈p2 ...
K. Boguslavski, A. Kurkela, A. Kurkela, T. Lappi, T. Lappi, J. Peuron   +5 more
semanticscholar   +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

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

A random walk with heavy flavours [PDF]

, 2013
We focus on evaluating transport coefficients like drag and diffusion of heavy quarks (HQ) passing through Quark Gluon Plasma using perturbative QCD (pQCD).
Bhattacharyya, Trambak, Das, Santosh K., Mazumder, Surasree   +2 more
core   +3 more sources

Phenomenological Review on Quark–Gluon Plasma: Concepts vs. Observations [PDF]

, 2016
In this review, we present an up-to-date phenomenological summary of research developments in the physics of the Quark–Gluon Plasma (QGP). A short historical perspective and theoretical motivation for this rapidly developing field of contemporary ...
R. Pasechnik, Michal vSumbera
semanticscholar   +1 more source

Generation of Electric Current by Magnetic Field at the Boundary: Quantum Scale Anomaly Versus Semiclassical Meissner Current Outside of the Conformal Limit

Advanced Physics Research, Volume 4, Issue 7, July 2025.
The paper discusses the role of scale anomaly in generating edge electric currents via the scale magnetic effect in scalar electrodynamics. Although the boundary electric current is much weaker than the Meissner current induced in superconducting materials, the scale anomaly can enhance conductivity near the boundary of the material.
Maxim Chernodub, Vladimir Goy, Alexander Molochkov   +2 more
wiley   +1 more source

The effect of weak magnetic photon emission from quark-gluon plasma

Physics Letters B
We propose a novel effect that accounts for the photon emission from a quark-gluon plasma in the presence of a weak external magnetic field. Although the weak magnetic photon emission from quark-gluon plasma only leads to a small correction to the photon
Jing-An Sun, Li Yan
doaj   +1 more source

Quark Gluon Plasma Diagnostics in a Successive Equilibrium Scenario [PDF]

, 1997
The relativistic Fokker Planck equation has been used to study the evolution of the quark distribution in the quark gluon phase expected to be formed in ultra-relativistic heavy ion collisions.
Alam, Alam, Alam, Baier, Balescu, Baym, Bialas, Bikash Sinha, Biró, Bjorken, Braaten, Chakrabarty, Cutler, Datta, Elze, Geiger, Glück, Gyulassy, Heiselberg, Hwa, Jan-e Alam, Karsch, Martin, Martin, McLerran, McLerran, McLerran, McLerran, Pradip Roy, Prigogine, Raha, Selikhov, Shuryak, Shuryak, Sibaji Raha, Sourav Sarkar, Svetitsky, Thoma, Traxler, Wang, Wang, Wang, Weldon, Wong, Yosida   +44 more
core   +3 more sources

Exploring Dark Photon Production and Kinetic Mixing Constraints in Heavy‐Ion Collisions

Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.
ABSTRACT Vector U‐bosons, often referred to as “dark photons,” are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing parameter ϵ2MU$$ {\upvarepsilon}^2\left({M}_U\right) $$ using dilepton data from heavy‐ion from SIS to RHIC ...
Adrian William Romero Jorge, Elena Bratkovskaya, Taesoo Song, Laura Sagunski   +3 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