Charged-particle pseudorapidity (rapidity) distribution in nucleus–nucleus collisions at alternating-gradient synchrotron energy

2000 ◽  
Vol 78 (9) ◽  
pp. 851-855
Author(s):  
F -H Liu
Keyword(s):  
Experimental Data ◽  
Charged Particle ◽  
Rapidity Distribution ◽  
Target Size ◽  
Stopping Power ◽  
Target Nucleon ◽  
Rapidity Distributions ◽  
Bombarding Energy

The charged-particle pseudorapidity (rapidity) distributions in nucleus–nucleus collisions at the alternating-gradient synchrotron energy (11–15A GeV) have been described by the thermalized cylinder picture. The calculated results are in agreement with the experimental data of the reactions 28Si + Au, Ag, Cu, and Al at 14.6A GeV/c bombarding energy. It is shown that the target stopping power (the leading participant target nucleon rapidity shift with respect to the projectile) increases with the target size, and the projectile penetrating power (the leading participant projectile nucleon rapidity shift with respect to the target) decreases with the increasing of target size. PACS Nos.: 25.75-q, 25.75Dw, and 24.10pa

scholarly journals A combined model for pseudo-rapidity distributions in Cu–Cu collisions at BNL-RHIC energies

2016 ◽  
Vol 25 (04) ◽  
pp. 1650025 ◽  
Author(s):  
Z. J. Jiang ◽  
J. Wang ◽  
Y. Huang
Keyword(s):  
Experimental Data ◽  
Proper Time ◽  
Charged Particles ◽  
Dense Matter ◽  
Rapidity Distribution ◽  
Experimental Measurements ◽  
Combined Model ◽  
Model Predictions ◽  
Phobos Collaboration ◽  
Rapidity Distributions

The charged particles produced in nucleus–nucleus collisions come from leading particles and those frozen out from the hot and dense matter created in collisions. The leading particles are conventionally supposed having Gaussian rapidity distributions normalized to the number of participants. The hot and dense matter is assumed to expand according to the unified hydrodynamics, a hydro model which unifies the features of Landau and Hwa–Bjorken model, and freeze out into charged particles from a time-like hypersurface with a proper time of [Formula: see text]. The rapidity distribution of this part of charged particles can be derived analytically. The combined contribution from both leading particles and unified hydrodynamics is then compared against the experimental data performed by BNL-RHIC-PHOBOS Collaboration in different centrality Cu–Cu collisions at [Formula: see text] and 62.4[Formula: see text]GeV, respectively. The model predictions are consistent with experimental measurements.

FORMULATION OF NEGATIVELY CHARGED PARTICLE RAPIDITY DISTRIBUTION IN NUCLEUS–NUCLEUS COLLISIONS AT HIGH ENERGY

2000 ◽  
Vol 15 (24) ◽  
pp. 1497-1501 ◽  
Author(s):  
FU-HU LIU
Keyword(s):  
Experimental Data ◽  
Charged Particle ◽  
High Energy ◽  
Rapidity Distribution

The negatively charged particle rapidity distribution in nucleus–nucleus collisions at high energy has been described by the thermalized cylinder picture. The calculated results are compared and found to be in agreement with the experimental data of the reactions 16 O + Au at 60A and 200A GeV, 32 S + Ag and S at 200A GeV, and 208 Pb + Pb at 158A GeV bombarding energies.

HYDRODYNAMIC SIMULATIONS OF 16O+208Pb COLLISIONS AT 200 GeV/N

1989 ◽  
Vol 04 (11) ◽  
pp. 983-993 ◽  
Author(s):  
T.L. McABEE ◽  
J.R. WILSON ◽  
J.A. ZINGMAN ◽  
C.T. ALONSO
Keyword(s):  
Experimental Data ◽  
Equations Of State ◽  
Recent Experimental Data ◽  
Baryonic Matter ◽  
Hydrodynamic Simulations ◽  
200 Gev ◽  
Rapidity Distributions ◽  
Target Rapidity ◽  
Bombarding Energy ◽  
Initial Target

We investigate collisions of 16 O with 208 Pb at a bombarding energy of 200 GeV /N in the lab frame. Our basis is an ideal, one-fluid 3-D hydrodynamics model. Several equations of state are used to study the qualitative relation between final baryon rapidity distributions and the stiffness of the EOS. We find that 75% of the baryonic matter lies within one unit of the initial target rapidity, in qualitative agreement with recent experimental data. In addition, our calculation is able to reproduce the integrated value of the dET/dy distribution that is observed experimentally.

Formulation of particle pseudo-rapidity (rapidity) distribution in high-energy pp collision and e+e– annihilation

2002 ◽  
Vol 80 (5) ◽  
pp. 533-540
Author(s):  
F -H Liu
Keyword(s):  
Experimental Data ◽  
High Energy ◽  
Rapidity Distribution ◽  
Cylinder Model ◽  
Rapidity Distributions ◽  
High Energy Collisions

The pseudorapidity (rapidity) distributions of particles produced in high-energy collisions are analyzed using the revised thermalized cylinder model. The calculated results are compared and found to be in agreement with the experimental data of pp collision and e+e– annihilation. PACS Nos.: 13.85-t, 13.75-n, 13.85Hd, 13.65+i

The study of the refractive scattering of 6Li and 6He on carbon target with the S-matrix approach

2021 ◽  
Vol 36 (36) ◽  
Author(s):  
Liyuan Hu ◽  
Yushou Song ◽  
Yingwei Hou ◽  
Huilan Liu ◽  
Gongming Yu
Keyword(s):  
Experimental Data ◽  
Elastic Scattering ◽  
Forward Direction ◽  
Matrix Approach ◽  
Carbon Target ◽  
Intermediate Energies ◽  
S Matrix ◽  
Bombarding Energy

In this paper, the S-matrix parametrization is adopted to analyze the refractive scattering of [Formula: see text] at intermediate energies systematically and that of [Formula: see text] at 230 MeV. For [Formula: see text], the experimental data containing the Fraunhofer oscillations and the rainbow falloff are reproduced very well by adjusting parameters. The S-matrix parameters and the rainbow angles show evident tendencies as the bombarding energy increases, which are comparable with those of [Formula: see text] elastic scattering on carbon target. For [Formula: see text], the experimental data in the forward direction are reproduced successfully by slightly adjusting the parameters used in the calculation of [Formula: see text] at 210 MeV. The calculated results show that the [Formula: see text] scattering exhibits a comparable transparency with that of [Formula: see text] at intermediate energies.

TU-E-BRB-10: Investigation of the Water-to-Air Stopping Power Ratio for Carbon Ion Beam Dosimetry Based on Experimental Data and FLUKA Simulation

2011 ◽  
Vol 38 (6Part29) ◽  
pp. 3768-3769
Author(s):  
D Sanchez-Parcerisa ◽  
A Gemmel ◽  
K Parodi ◽  
O Jäkel ◽  
E Rietzel
Keyword(s):  
Experimental Data ◽  
Ion Beam ◽  
Stopping Power ◽  
Power Ratio ◽  
Carbon Ion ◽  
Carbon Ion Beam ◽  
Beam Dosimetry

A study of nuclear stopping power using proton and pion rapidity distributions in central 60 GeV/nucleon 16O+Au collisions

1992 ◽  
Author(s):  
S. Tonse ◽  
S. I. Chase ◽  
J. W. Harris ◽  
G. Odyniec ◽  
G. Rai ◽  
...  
Keyword(s):  
Stopping Power ◽  
Nuclear Stopping ◽  
Rapidity Distributions
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