High Energy Nuclear Collisions and Quark Gluon Plasma

1992 ◽  
Author(s):  
Minoru Biyajima ◽  
Hideto Enyo ◽  
Teiji Kunihiro ◽  
Osamu Miyamura
Keyword(s):  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
High Energy ◽  
Nuclear Collisions

J/Ψ PRODUCTION IN HIGH ENERGY PARTICLE AND NUCLEAR COLLISIONS: SUPPRESSED, ENHANCED, OR JUST NORMAL?

2005 ◽  
Vol 20 (20n21) ◽  
pp. 5037-5058 ◽  
Author(s):  
P. GUPTAROY ◽  
GOURI SANYAL ◽  
BHASKAR DE ◽  
S. BHATTACHARYYA
Keyword(s):  
Theoretical Approach ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
High Energy ◽  
High Energy Particle ◽  
Experimental Measurements ◽  
Special Importance ◽  
Energy Particle ◽  
Nuclear Collisions ◽  
Quantum Numbers

The oncoming recent data on production of J/Ψ mesons in some high energy particle and nuclear collisions are of special importance in view of the controversies centering around the so-called suppression or enhancement mechanisms for this particle-species. We will try to explain here the features of some of the basic observables on J/Ψ production with the help of an approach which has no direct links with quark–gluon plasma (QGP) considerations, but can interpret a large amount of data related to the proposed physical signatures of QGP. The final outcome, based on the present study, amounts to stating the fact that the J/Ψ production is neither suppressed nor enhanced; rather it exhibits both in our theoretical approach and also in the experimental measurements a behavior which is just as normal as many other secondaries, with only specificities of its own intrinsic quantum numbers and the very massive nature.

scholarly journals Gamma-Jet Tomography of Quark-Gluon Plasma in High-Energy Nuclear Collisions

2009 ◽  
Vol 830 (1-4) ◽  
pp. 443c-446c ◽  
Author(s):  
Hanzhong Zhang ◽  
J.F. Owens ◽  
Enke Wang ◽  
Xin-Nian Wang
Keyword(s):  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
High Energy ◽  
Nuclear Collisions

scholarly journals Inhomogeneous nucleation of quark-gluon plasma in high energy nuclear collisions

1995 ◽  
Vol 52 (5) ◽  
pp. 2725-2732 ◽  
Author(s):  
Joseph I. Kapusta ◽  
Axel P. Vischer
Keyword(s):  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
High Energy ◽  
Nuclear Collisions

scholarly journals The First Moment of Azimuthal Anisotropy in Nuclear Collisions from AGS to LHC Energies

2016 ◽  
Vol 2016 ◽  
pp. 1-16 ◽  
Author(s):  
Subhash Singha ◽  
Prashanth Shanmuganathan ◽  
Declan Keane
Keyword(s):  
Quark Gluon Plasma ◽  
Charged Particles ◽  
Theoretical Work ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Azimuthal Anisotropy ◽  
Flow Focusing ◽  
Nuclear Collisions ◽  
Ion Collisions ◽  
First Moment

We review topics related to the first moment of azimuthal anisotropy (v1), commonly known as directed flow, focusing on both charged particles and identified particles from heavy-ion collisions. Beam energies from the highest available, at the CERN LHC, down to projectile kinetic energies per nucleon of a few GeV per nucleon, as studied in experiments at the Brookhaven AGS, fall within our scope. We focus on experimental measurements and on theoretical work where direct comparisons with experiment have been emphasized. The physics addressed or potentially addressed by this review topic includes the study of Quark Gluon Plasma and, more generally, investigation of the Quantum Chromodynamics phase diagram and the equation of state describing the accessible phases.

INTERMITTENCY PATTERNS IN PROTON-NUCLEUS INTERACTIONS AT HIGH ENERGY

1993 ◽  
Vol 08 (40) ◽  
pp. 3853-3859 ◽  
Author(s):  
D. K. MAITY ◽  
P. K. BANERJEE ◽  
B. B. DAS ◽  
D. RAVINDRAN ◽  
D. K. BHATTACHARJEE
Keyword(s):  
Power Law ◽  
Quark Gluon Plasma ◽  
Center Of Mass ◽  
Gluon Plasma ◽  
High Energy ◽  
Mass Energy ◽  
Factorial Moments ◽  
Center Of Mass Energy

A study of intermittency in hadron-nucleus and the comparison with nucleus-nucleus interactions is presented. The power law behavior of the factorial moments and the variation of intermittency index with the center-of-mass energy are shown. Results favor the formation of quark-gluon plasma in preference to a cascade mechanism.

scholarly journals On Pseudorapidity Distribution and Speed of Sound in High Energy Heavy Ion Collisions Based on a New Revised Landau Hydrodynamic Model

2015 ◽  
Vol 2015 ◽  
pp. 1-23 ◽  
Author(s):  
Li-Na Gao ◽  
Fu-Hu Liu
Keyword(s):  
Speed Of Sound ◽  
Hydrodynamic Model ◽  
Quark Gluon Plasma ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
High Energy ◽  
Relativistic Heavy Ion Collider ◽  
Central Source ◽  
Ion Collisions

We propose a new revised Landau hydrodynamic model to study systematically the pseudorapidity distributions of charged particles produced in heavy ion collisions over an energy range from a few GeV to a few TeV per nucleon pair. The interacting system is divided into three sources, namely, the central, target, and projectile sources, respectively. The large central source is described by the Landau hydrodynamic model and further revised by the contributions of the small target/projectile sources. The modeling results are in agreement with the available experimental data at relativistic heavy ion collider, large hadron collider, and other energies for different centralities. The value of square speed of sound parameter in different collisions has been extracted by us from the widths of rapidity distributions. Our results show that, in heavy ion collisions at energies of the two colliders, the central source undergoes a phase transition from hadronic gas to quark-gluon plasma liquid phase; meanwhile, the target/projectile sources remain in the state of hadronic gas. The present work confirms that the quark-gluon plasma is of liquid type rather than being of a gas type.

Sign in / Sign up

Export Citation Format

Share Document