skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Systematic study of the kaon to pion multiplicity ratios in heavy-ion collisions

Abstract

We present a systematic study of the kaon to pion multiplicity ratios (K{sup +}/{pi}{sup +} and K{sup -}/{pi}{sup -}) in heavy-ion collisions from AGS to RHIC energy using the relativistic quantum molecular dynamics (RQMD) model. The model describes reasonably well the available experimental data on K{sup +}/{pi}{sup +} and K{sup -}/{pi}{sup -}. Within the model, we find that the strong increase of the ratios with the number of participants is mainly due to hadronic rescattering of produced mesons with ingoing baryons and their resonances. The enhancement of K/{pi} in heavy-ion collisions with respect to elementary p+p interactions is larger at AGS than SPS energy, and decreases smoothly with bombarding energy. The total multiplicity ratios at RHIC energy are predicted by RQMD to be K{sup +}/{pi}{sup +}=0.19 and K{sup -}/{pi}{sup -}=0.15. (c) 2000 The American Physical Society.

Authors:
 [1];  [2];  [3];  [4];  [1];  [5]
  1. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  2. Physics Department, Kent State University, Kent, Ohio 44242 (United States)
  3. (United States)
  4. Department of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794 (United States)
  5. Physics Department, University of California at Los Angeles, Los Angeles, California 90095 (United States)
Publication Date:
OSTI Identifier:
20216930
Resource Type:
Journal Article
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 6; Other Information: PBD: Jun 2000; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; HEAVY ION REACTIONS; KAONS PLUS; KAONS MINUS; MUONS MINUS; MUONS PLUS; MOLECULAR DYNAMICS METHOD; NUCLEAR MATTER; STRANGENESS; THEORETICAL DATA

Citation Formats

Wang, F., Liu, H., Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Sorge, H., Xu, N., and Yang, J. Systematic study of the kaon to pion multiplicity ratios in heavy-ion collisions. United States: N. p., 2000. Web. doi:10.1103/PhysRevC.61.064904.
Wang, F., Liu, H., Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Sorge, H., Xu, N., & Yang, J. Systematic study of the kaon to pion multiplicity ratios in heavy-ion collisions. United States. doi:10.1103/PhysRevC.61.064904.
Wang, F., Liu, H., Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, Sorge, H., Xu, N., and Yang, J. Thu . "Systematic study of the kaon to pion multiplicity ratios in heavy-ion collisions". United States. doi:10.1103/PhysRevC.61.064904.
@article{osti_20216930,
title = {Systematic study of the kaon to pion multiplicity ratios in heavy-ion collisions},
author = {Wang, F. and Liu, H. and Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 and Sorge, H. and Xu, N. and Yang, J.},
abstractNote = {We present a systematic study of the kaon to pion multiplicity ratios (K{sup +}/{pi}{sup +} and K{sup -}/{pi}{sup -}) in heavy-ion collisions from AGS to RHIC energy using the relativistic quantum molecular dynamics (RQMD) model. The model describes reasonably well the available experimental data on K{sup +}/{pi}{sup +} and K{sup -}/{pi}{sup -}. Within the model, we find that the strong increase of the ratios with the number of participants is mainly due to hadronic rescattering of produced mesons with ingoing baryons and their resonances. The enhancement of K/{pi} in heavy-ion collisions with respect to elementary p+p interactions is larger at AGS than SPS energy, and decreases smoothly with bombarding energy. The total multiplicity ratios at RHIC energy are predicted by RQMD to be K{sup +}/{pi}{sup +}=0.19 and K{sup -}/{pi}{sup -}=0.15. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevC.61.064904},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 6,
volume = 61,
place = {United States},
year = {2000},
month = {6}
}