Dominance of nucleon-nucleon bremsstrahlung in mass-asymmetric heavy-ion collisions at 15 MeV/nucleon

1989 ◽  
Vol 40 (6) ◽  
pp. 2893-2896 ◽  
Author(s):  
G. Breitbach ◽  
G. Koch ◽  
S. Koch ◽  
W. Kühn ◽  
A. Ruckelshausen ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Ion Collisions

RAPIDITY AND AZIMUTHAL CORRELATION PATTERNS IN NUCLEON-NUCLEON AND RELATIVISTIC HEAVY ION COLLISIONS AT $\sqrt{s} = 200\, {\rm GeV}$

2007 ◽  
Vol 16 (10) ◽  
pp. 3379-3385 ◽  
Author(s):  
MEIJUAN WANG ◽  
YUANFANG WU
Keyword(s):  
Heavy Ion Collisions ◽  
System Size ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Relativistic Heavy Ion Collisions ◽  
Production Mechanism ◽  
Azimuthal Correlation ◽  
Pp Collisions ◽  
Ion Collisions

Rapidity and azimuthal correlation patterns for nucleon and relativistic heavy ion collisions are systematically studied by using PYTHIA for pp collisions, RQMD and AMPT for Au − Au collisions at [Formula: see text], respectively. The results show that the measures are sensitive to the collision particles, system size and production mechanism of the system.

scholarly journals Effects of density-dependent scenarios of in-medium nucleon-nucleon interactions in heavy-ion collisions

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
Gao-Feng Wei ◽  
Chang Xu ◽  
Wei Xie ◽  
Qi-Jun Zhi ◽  
Shi-Guo Chen ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Density Dependent ◽  
Ion Collisions ◽  
Nucleon Interactions ◽  
Effects Of Density

scholarly journals Isospin Physics in Heavy-Ion Collisions at Intermediate Energies

1998 ◽  
Vol 07 (02) ◽  
pp. 147-229 ◽  
Author(s):  
Bao-An Li ◽  
Che Ming Ko ◽  
Wolfgang Bauer
Keyword(s):  
Equation Of State ◽  
Nuclear Matter ◽  
Cross Sections ◽  
Heavy Ion Collisions ◽  
Transport Model ◽  
Transient State ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Asymmetric Nuclear Matter ◽  
Ion Collisions

In nuclear collisions induced by stable or radioactive neutron-rich nuclei a transient state of nuclear matter with an appreciable isospin asymmetry as well as thermal and compressional excitation can be created. This offers the possibility to study the properties of nuclear matter in the region between symmetric nuclear matter and pure neutron matter. In this review, we discuss recent theoretical studies of the equation of state of isospin-asymmetric nuclear matter and its relations to the properties of neutron stars and radioactive nuclei. Chemical and mechanical instabilities as well as the liquid-gas phase transition in asymmetric nuclear matter are investigated. The in-medium nucleon-nucleon cross sections at different isospin states are reviewed as they affect significantly the dynamics of heavy ion collisions induced by radioactive beams. We then discuss an isospin-dependent transport model, which includes different mean-field potentials and cross sections for the proton and neutron, and its application to these reactions. Furthermore, we review the comparisons between theoretical predictions and available experimental data. In particular, we discuss the study of nuclear stopping in terms of isospin equilibration, the dependence of nuclear collective flow and balance energy on the isospin-dependent nuclear equation of state and cross sections, the isospin dependence of total nuclear reaction cross sections, and the role of isospin in preequilibrium nucleon emissions and subthreshold pion production.

K+production far below the free nucleon-nucleon threshold in heavy-ion collisions

1993 ◽  
Vol 47 (1) ◽  
pp. R16-R20 ◽  
Author(s):  
M. Belkacem ◽  
E. Suraud ◽  
S. Ayik
Keyword(s):  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Free Nucleon ◽  
Ion Collisions

scholarly journals COLLISION THERMALIZATION OF NUCLEONS IN RELATIVISTIC HEAVY-ION COLLISIONS

2009 ◽  
Vol 24 (24) ◽  
pp. 4437-4456 ◽  
Author(s):  
D. ANCHISHKIN ◽  
A. MUSKEYEV ◽  
S. YEZHOV
Keyword(s):  
Heavy Ion Collisions ◽  
Random Quantity ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions ◽  
Nucleon Momentum ◽  
Physical Information ◽  
Made In ◽  
Nucleus Nucleus Collision

We consider a possible mechanism of thermalization of nucleons in relativistic heavy-ion collisions. Our model belongs, to a certain degree, to the transport ones; we investigate the evolution of the system created in nucleus–nucleus collision, but we parametrize this development by the number of collisions of every particle during evolution rather than by the time variable. We based on the assumption that the nucleon momentum transfer after several nucleon–nucleon (–hadron) elastic and inelastic collisions becomes a random quantity driven by a proper distribution. This randomization results in a smearing of the nucleon momenta about their initial values and, as a consequence, in their partial isotropization and thermalization. The trial evaluation is made in the framework of a toy model. We show that the proposed scheme can be used for extraction of the physical information from experimental data on nucleon rapidity distribution.

Sign in / Sign up

Export Citation Format

Share Document