scholarly journals Isospin Effects on Subthreshold Particle Production

2019 ◽  
Vol 14 ◽  
pp. 7
Author(s):  
T. Gaitanos ◽  
G. Ferini ◽  
M. Colonna ◽  
M. Di Toro ◽  
H. H. Wolter
Keyword(s):  
Particle Production ◽  
Transport Model ◽  
Mean Field ◽  
Heavy Ion ◽  
Production Data ◽  
Collision Term ◽  
Relativistic Mean Field ◽  
Ion Collisions ◽  
Dependent Part ◽  
Asymmetric Matter

The production/absorption rate of particles in compressed and heated asymmetric matter is studied using a Relativistic Mean Field (RMF) transport model with an isospin dependent collision term. We show that the K+/K° ratio reflects the isospin effects on the production rates just because of the large sensitivity around the threshold. The results are very promising with respect to the possibility of a direct link between particle production data in exotic Heavy Ion Collisions (HIC) and the isospin dependent part of the Equation of State (EoS) at high baryon densities.

scholarly journals Theoretical perspective on strangeness production

2018 ◽  
Vol 171 ◽  
pp. 03002 ◽  
Author(s):  
Che Ming Ko
Keyword(s):  
Particle Production ◽  
Theoretical Perspective ◽  
Mean Field ◽  
Dense Matter ◽  
Heavy Ion ◽  
Density Fluctuations ◽  
Strangeness Production ◽  
Ion Collisions ◽  
Strange Hadron ◽  
Exotic Hadrons

A brief review of some highlights and puzzles on strangeness production in heavy ion collisions is given. These include strangeness production and the nuclear equation of state; deeply subthreshold strangeness production; mean-field potentials on strange hadrons; phi meson in dense matter; anomalous strange hadron to pion ratios; density fluctuations on particle production; A hyperon polarization and the vorticity field, and exotic hadrons.

scholarly journals Kaon Condensation and Dilepton Production from Strange Hadronic Matter

1997 ◽  
Vol 50 (1) ◽  
pp. 23 ◽  
Author(s):  
T. Tatsumi ◽  
H. Shin ◽  
T. Maruyama ◽  
H. Fujii
Keyword(s):  
Early Stage ◽  
Mean Field Theory ◽  
Mean Field ◽  
Heavy Ion ◽  
High Energy ◽  
Hadronic Matter ◽  
Dilepton Production ◽  
Relativistic Mean Field ◽  
Kaon Condensation ◽  
Ion Collisions

We consider modification of kaons and the implications for dilepton production in the early stage of high-energy heavy-ion collisions. Constructing the equation of state of hadronic matter, including kaons as well as hyperons Λ with recourse to the relativistic mean-field theory, we study the production rate of dileptons. The possibility of K+ condensation is also revisited in this framework.

Equilibration in intermediate-energy heavy-ion collisions within a relativistic mean-field two-fluid model

1991 ◽  
Vol 340 (4) ◽  
pp. 385-391 ◽  
Author(s):  
Y. B. Ivanov ◽  
V. N. Russkikh ◽  
M. Sch�nhofen ◽  
M. Cubero ◽  
B. L. Friman ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Fluid Model ◽  
Mean Field ◽  
Heavy Ion ◽  
Intermediate Energy ◽  
Relativistic Mean Field ◽  
Ion Collisions ◽  
Two Fluid Model ◽  
Two Fluid

scholarly journals How Sensitive Global Observables are to the Event Topology in Heavy-ion Collisions at the Large Hadron Collider: A Case Study

2021 ◽  
Author(s):  
Suraj Prasad ◽  
Neelkamal Mallick ◽  
Debadatta Behera ◽  
Raghunath Sahoo ◽  
Sushanta Tripathy
Keyword(s):  
Large Hadron Collider ◽  
Heavy Ion Collisions ◽  
Particle Production ◽  
Transport Model ◽  
Hadron Collider ◽  
Heavy Ion ◽  
High Energy ◽  
Event Shape ◽  
Ion Collisions ◽  
Event Topology

Abstract Particle production and event topology are very strongly correlated in high-energy hadronic and nuclear collisions. Event topology is decided by the underlying particle production dynamics and medium effects. Transverse spherocity is an event shape observable, which has been used in pp and heavy-ion collisions to separate the events based on their geometrical shapes. It has the unique capability to distinguish between jetty and isotropic events. In this work, we have implemented transverse spherocity in Pb-Pb collisions at √ sNN = 5.02 TeV using A Multi-Phase Transport Model (AMPT). While awaiting for experimental explorations, we perform a feasibility study of dependence of transverse spherocity on some of the global observables in heavy-ion collisions at the Large Hadron Collider energies. These global observables include the Bjorken energy density (εBj), speed of sound (cs2) in the medium and the kinetic freeze-out properties for different collision centralities. The present study reveals about the usefulness of event topology dependent measurements in heavy-ion collisions in contrast to proton-proton collisions.

LIGHT CLUSTERS IN NUCLEAR MATTER

2011 ◽  
Vol 20 (04) ◽  
pp. 897-901
Author(s):  
GERD RÖPKE
Keyword(s):  
Nuclear Matter ◽  
Mean Field ◽  
Heavy Ion ◽  
Field Approximation ◽  
Mean Field Approximation ◽  
Einstein Condensation ◽  
Relativistic Mean Field ◽  
Self Energy ◽  
Ion Collisions ◽  
Mott Effect

Within a quantum statistical approach, a in-medium Schrödinger equation is derived for a few-nucleon system embedded in nuclear matter. Medium modifications of the cluster quasiparticles are described by self-energy and Pauli blocking effects. Benchmarks such as the nuclear statistical equilibrium, virial expansion and the relativistic mean field approximation are considered. An interesting effect is the formation of a four- or two-nucleon quantum condensate, showing the crossover from Cooper pairing to Bose-Einstein condensation. The resulting thermodynamic properties are of interest for heavy-ion collisions and astrophysical applications. Quantum condensates and the Mott effect are also of relevance for the structure of finite nuclei, specially dilute excited states like the Hoyle state of 12 C .

Preequilibrium particles and mean-field effects from particle-particle correlations in heavy-ion collisions

1990 ◽  
Vol 514 (3) ◽  
pp. 564-588 ◽  
Author(s):  
D. Ardouin ◽  
Z. Basrak ◽  
P. Schuck ◽  
A. Péghaire ◽  
F. Saint-Laurent ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Mean Field ◽  
Heavy Ion ◽  
Particle Correlations ◽  
Field Effects ◽  
Ion Collisions
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