A5063355446- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Theoretical and Computational Physics
- Statistical Mechanics and Entropy
- Nuclear physics research studies
- Silicon and Solar Cell Technologies
- Particle Detector Development and Performance
- Magnetic confinement fusion research
- Semiconductor materials and devices
- Quantum Mechanics and Applications
- Stochastic processes and statistical mechanics
- Black Holes and Theoretical Physics
- Noncommutative and Quantum Gravity Theories
- Quantum Electrodynamics and Casimir Effect
- Advanced Materials Characterization Techniques
- Tuberculosis Research and Epidemiology
- Forecasting Techniques and Applications
- Distributed and Parallel Computing Systems
- Health Systems, Economic Evaluations, Quality of Life
- Recycling and Waste Management Techniques
- Molten salt chemistry and electrochemical processes
- Nuclear reactor physics and engineering
- Influenza Virus Research Studies
Taibah University
2011-2022
École Normale Supérieure de Kouba
2003-2022
University of Algiers 3
2015
Institut National de Physique Nucléaire et de Physique des Particules
1992-2001
Centre National de la Recherche Scientifique
1992-2001
University of Bergen
1991-1995
Universidade de Santiago de Compostela
1992-1994
University of Birmingham
1994
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
1994
Lawrence Berkeley National Laboratory
1994
Due to the finite-size effects, localization of phase transition in finite systems and determination its order, become an extremely difficult task, even simplest known cases. In order identify locate finite-volume point $$T_{0}(V)$$ QCD deconfinement a colorless QGP, we have developed new approach using cumulant expansion parameter $$L_{mn}$$ -method. The first six cumulants $$C_{1,2,3,4,5,6}$$ with corresponding under-normalized ratios (skewness $$\Sigma $$ , kurtosis $$\kappa pentosis...
The thermofield dynamics, a real-time formalism for finite temperature quantum field theory, is used to calculate the rates e + - reactions at temperature. results show role of in defining hadronic state after plasma has been cooled down.
The color confinement in Quantum Chromodynamics (QCD) remains an interesting and intriguing phenomenon. It is considered as a very important nonperturbative effect to be taken into account all models intended describe the QCD many-parton system. During deconfinement phase transition, non-Abelian character of partonic plasma manifests itself manner. A direct consequence that states any system must colorless requirement colorlessness condition more than necessary. Indeed, state result...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation S. Cherif, M. A. Ahmed, Ladrem; Higher order cumulants in colorless partonic plasma. AIP Conf. Proc. 10 June 2016; 1742 (1): 030004. https://doi.org/10.1063/1.4953125 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Dropdown Menu...
The fragmentation function at high energy experiments is introduced by using thermofield dynamics (TFD), a real-time finite-temperature quantum field formalism. Due to the structure of TFD, results T = 0 and ≠ are split in direct way. As an application, we consider temperature effect on hadron leading quark–antiquark pairs. Using definition Wilson-loop real-time, find that decreases magnitude with increase temperature.
Using the effective Lagrangian for low energy/temperature of photon–photon interaction and lowest-order photon self-energy is calculated in Real-Time Formalism (RTF) an arbitrary path specified by [Formula: see text]-parameter within new basis. The causal Green’s functions (without chemical potential) scalar field are evaluated to derive usual thermal propagators mixed space. It shown that symmetric propagator does not depend on text]-parameter. Furthermore, used calculate some...
Central rapidity Λ production has been measured in sulfur collisions with Cu, Ag, and Pb at 200 GeV/c per nucleon. Lambdas produced these were identified by their charged decays recorded a time projection chamber. The yields are compared as function of target mass. For each target, the reported transverse kinetic energy zero degree (a measure collision centrality). In system, data exceed predictions venus size-2(4.02) model sulfur-nucleus collisions. observed excesses show no obvious...
The time evolution of the expanding colorless partonic matter, created in ultra-relativistic heavy ion collisions and undergoing confining phase transition, is discussed context our QCD-MIT bag model with boost invariant Bjorken expansion using -method. direct extension this method to non-colorless case clearly formulated. hydrodynamic equation a longitudinal scenario non-ideal relativistic medium finite volume solved certain initial conditions . temperature T(τ,V) as function proper then...
Any physical system considered to study the QCD deconfinement phase transition certainly has a finite volume, so size effects are inevitably present. This renders location of and determination its order as an extremely difficult task, even in simplest known cases. In identify locate colorless point volume $T_{0}(V)$, new approach based on finite-size cumulant expansion parameter $\mathscr{L}_{m,n}$-Method is used.We have shown that both cumulants higher their ratios, associated...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation M. Ladrem, Z. Zaki‐Al‐Full; Exact Calculation of Hydrodynamical Response Functions during the Deconfinement Phase Transition from a Hadronic Gas to Colorless QGP. AIP Conf. Proc. 23 May 2011; 1343 (1): 492–494. https://doi.org/10.1063/1.3575072 Download citation file: Ris (Zotero) Reference Manager EasyBib...
The collective flow of hot and dense matter (partonic plasma hadronic gas) created in an ultra relativistic heavy ion collision can be usually described by hydrodynamics if only the thermalization is achieved it locally maintained during subsequent expansion. It requires knowledge equation state, which gives a relation between pressure P, energy density ε, entropy s sound velocitycs, but no detailed microscopic dynamics. After study these hydrodynamical observables previous work, we...
It is well established that Quantum Chromo-Dynamics (QCD) at finite temperature exhibits a typical behavior of system with phase transition. At sufficiently high temperatures and/or densities, the strongly interacting matter undergoes Deconfinement Phase Transition from hadronic state to Partonic state. This new has been observed and identified as being QCD partonic plasma in Ultra-Relativistic Heavy Ion Collisions experiments RHIC LHC. All hadrons created final stage are colorless. When we...
One of the distinctive feature QCD phase diagram is possible emergence a finite volume transition point as particular in behavior any thermodynamical response function considered to study colorless deconfinement volume. Many properties this are an extremely difficult task, even simplest known cases. In order identify and locate point, new approach using finite-size cumulant expansion parameter ℒm,n-Method QCD-thermodynamics was developed. We have shown that cumulants higher behave enough way...