scholarly journals Particle production and equilibrium properties within a new hadron transport approach for heavy-ion collisions

2016 ◽  
Vol 94 (5) ◽  
Author(s):  
J. Weil ◽  
V. Steinberg ◽  
J. Staudenmaier ◽  
L. G. Pang ◽  
D. Oliinychenko ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Particle Production ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Transport Approach

scholarly journals Can Baryon Stopping Be Understood within a Hadronic Transport Approach

Proceedings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 2
Author(s):  
Justin Mohs ◽  
Sangwook Ryu ◽  
Hannah Elfner
Keyword(s):  
Heavy Ion Collisions ◽  
Particle Production ◽  
String Model ◽  
Heavy Ion ◽  
High Energy ◽  
Theoretical Understanding ◽  
Double Peak Structure ◽  
Ion Collisions ◽  
Transport Approach ◽  
Rapidity Spectrum

The changing shape of the rapidity spectrum of net protons over the SPS energy range is still lacking theoretical understanding. In this work, a model for string excitation and string fragmentation is implemented for the description of high energy collisions within a hadronic transport approach. The free parameters of the string model are tuned to reproduce the experimentally measured particle production in proton-proton collisions. With the fixed parameters we advance to calculations for heavy ion collisions, where the shape of the proton rapidity spectrum changes from a single peak to a double peak structure with increasing beam energy in the experiment. We present calculations of proton rapidity spectra at different SPS energies in heavy ion collisions. Qualitatively, a good agreement with the experimental findings is obtained. In a future work, the formation process of string fragments will be studied in detail aiming to quantitatively reproduce the measurement.

Particle production within a selfconsistent transport approach to heavy-ion collisions

1989 ◽  
Vol 495 (1-2) ◽  
pp. 91-102 ◽  
Author(s):  
K. Niita ◽  
T.S. Biro ◽  
W. Cassing ◽  
A.L. De Paoli ◽  
U. Mosel ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Particle Production ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Transport Approach

Very-high-energy light charged-particle production near 0° in heavy-ion collisions, 9≤E/A≤40 MeV

1990 ◽  
Vol 42 (4) ◽  
pp. 1519-1529 ◽  
Author(s):  
S. Shaheen ◽  
F. D. Becchetti ◽  
D. A. Roberts ◽  
J. W. Jänecke ◽  
R. L. Stern ◽  
...  
Keyword(s):  
Charged Particle ◽  
Heavy Ion Collisions ◽  
Particle Production ◽  
Heavy Ion ◽  
High Energy ◽  
Light Charged Particle ◽  
Ion Collisions ◽  
Charged Particle Production ◽  
Very High Energy ◽  
Very High

scholarly journals Particle Production in Ultrarelativistic Heavy-Ion Collisions: A Statistical-Thermal Model Review

2013 ◽  
Vol 2013 ◽  
pp. 1-27 ◽  
Author(s):  
S. K. Tiwari ◽  
C. P. Singh
Keyword(s):  
Thermal Model ◽  
Heavy Ion Collisions ◽  
Particle Production ◽  
Heavy Ion ◽  
Gluon Plasma ◽  
Transverse Mass ◽  
Current Status ◽  
Thermal Models ◽  
Ion Collisions ◽  
Ultrarelativistic Heavy Ion Collisions

The current status of various thermal and statistical descriptions of particle production in the ultrarelativistic heavy-ion collisions experiments is presented in detail. We discuss the formulation of various types of thermal models of a hot and dense hadron gas (HG) and the methods incorporated in the implementing of the interactions between hadrons. It includes our new excluded-volume model which is thermodynamically consistent. The results of the above models together with the experimental results for various ratios of the produced hadrons are compared. We derive some new universal conditions emerging at the chemical freeze-out of HG fireball showing independence with respect to the energy as well as the structure of the nuclei used in the collision. Further, we calculate various transport properties of HG such as the ratio of shear viscosity-to-entropy using our thermal model and compare with the results of other models. We also show the rapidity as well as transverse mass spectra of various hadrons in the thermal HG model in order to outline the presence of flow in the fluid formed in the collision. The purpose of this review article is to organize and summarize the experimental data obtained in various experiments with heavy-ion collisions and then to examine and analyze them using thermal models so that a firm conclusion regarding the formation of quark-gluon plasma (QGP) can be obtained.

scholarly journals Two components in charged particle production in heavy-ion collisions

2016 ◽  
Vol 903 ◽  
pp. 204-210 ◽  
Author(s):  
A.A. Bylinkin ◽  
N.S. Chernyavskaya ◽  
A.A. Rostovtsev
Keyword(s):  
Charged Particle ◽  
Heavy Ion Collisions ◽  
Particle Production ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Charged Particle Production

PHQMD—A Microscopic Transport Approach for Heavy-Ion Collisions and Cluster Formation

2020 ◽  
pp. 105-117
Author(s):  
Jörg Aichelin ◽  
M. Winn ◽  
E. L. Bratkovskaya ◽  
Arnaud Le Fèvre ◽  
Yvonne Leifels ◽  
...  
Keyword(s):  
Heavy Ion Collisions ◽  
Cluster Formation ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Transport Approach

scholarly journals Kinetic Approach to Pair Production in Strong Fields—Two Lessons for Applications to Heavy-Ion Collisions

Particles ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 166-179 ◽  
Author(s):  
David Blaschke ◽  
Lukasz Juchnowski ◽  
Andreas Otto
Keyword(s):  
Electric Fields ◽  
Heavy Ion Collisions ◽  
Particle Production ◽  
Heavy Ion ◽  
String Tension ◽  
Particle Number Density ◽  
Apparent Temperature ◽  
Particle Spectrum ◽  
Stochastic Field ◽  
Ion Collisions

The kinetic-equation approach to particle production in strong, time-dependent external fields is revisited and three limiting cases are discussed for different field patterns: the Sauter pulse, a harmonic pulse with a Gaussian envelope, and a Poisson-distributed stochastic field. It is shown that for transient subcritical electric fields E ( t ) a finite residual particle number density n ( ∞ ) would be absent if the field-dependence of the dynamical phase in the Schwinger source term would be neglected. In this case the distribution function of created particles follows the law f ( t ) ∼ E 2 ( t ) . Two lessons for particle production in heavy-ion collisions are derived from this exercise. First: the shorter the (Sauter-type) pulse, the higher the residual density of produced particles. Second: although the Schwinger process in a string-type field produces a non-thermal particle spectrum, a Poissonian distribution of the (fluctuating) strings produces a thermal spectrum with an apparent temperature that coincides with the Hawking–Unruh temperature for the mean value of the string tension.

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