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Title: Single and double {pi}{sup -}/{pi}{sup +} ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy

Abstract

Based on the isospin- and momentum-dependent hadronic transport model IBUU04, effects of the nuclear symmetry energy on the single and double {pi}{sup -}/{pi}{sup +} ratios in central reactions of {sup 132}Sn+{sup 124}Sn and {sup 112}Sn+{sup 112}Sn at a beam energy of 400 MeV/nucleon are studied. It is found that around the Coulomb peak of the single {pi}{sup -}/{pi}{sup +} ratio the double {pi}{sup -}/{pi}{sup +} ratio taken from the two isotopic reactions retains about the same sensitivity to the density dependence of nuclear symmetry energy. Because the double {pi}{sup -}/{pi}{sup +} ratio can significantly reduce the systematic errors, it is thus a more effective probe for the high-density behavior of the nuclear symmetry energy.

Authors:
 [1];  [2];  [3];  [4];  [2];  [1]
  1. Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000 (China)
  2. (China)
  3. Department of Chemistry and Physics, P.O. Box 419, Arkansas State University, State University, Arkansas 72467-0419 (United States)
  4. Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
Publication Date:
OSTI Identifier:
20771350
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 73; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevC.73.034603; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; DENSITY; HEAVY ION REACTIONS; ISOSPIN; MEV RANGE; PARTICLE PRODUCTION; PIONS MINUS; PIONS PLUS; SYMMETRY; TIN 112; TIN 124; TIN 132; TRANSPORT THEORY

Citation Formats

Yong Gaochan, Graduate School, Chinese Academy of Science, Beijing 100039, Li Baoan, Chen Liewen, Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, and Zuo Wei. Single and double {pi}{sup -}/{pi}{sup +} ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy. United States: N. p., 2006. Web. doi:10.1103/PhysRevC.73.034603.
Yong Gaochan, Graduate School, Chinese Academy of Science, Beijing 100039, Li Baoan, Chen Liewen, Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, & Zuo Wei. Single and double {pi}{sup -}/{pi}{sup +} ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy. United States. doi:10.1103/PhysRevC.73.034603.
Yong Gaochan, Graduate School, Chinese Academy of Science, Beijing 100039, Li Baoan, Chen Liewen, Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, and Zuo Wei. Wed . "Single and double {pi}{sup -}/{pi}{sup +} ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy". United States. doi:10.1103/PhysRevC.73.034603.
@article{osti_20771350,
title = {Single and double {pi}{sup -}/{pi}{sup +} ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy},
author = {Yong Gaochan and Graduate School, Chinese Academy of Science, Beijing 100039 and Li Baoan and Chen Liewen and Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 and Zuo Wei},
abstractNote = {Based on the isospin- and momentum-dependent hadronic transport model IBUU04, effects of the nuclear symmetry energy on the single and double {pi}{sup -}/{pi}{sup +} ratios in central reactions of {sup 132}Sn+{sup 124}Sn and {sup 112}Sn+{sup 112}Sn at a beam energy of 400 MeV/nucleon are studied. It is found that around the Coulomb peak of the single {pi}{sup -}/{pi}{sup +} ratio the double {pi}{sup -}/{pi}{sup +} ratio taken from the two isotopic reactions retains about the same sensitivity to the density dependence of nuclear symmetry energy. Because the double {pi}{sup -}/{pi}{sup +} ratio can significantly reduce the systematic errors, it is thus a more effective probe for the high-density behavior of the nuclear symmetry energy.},
doi = {10.1103/PhysRevC.73.034603},
journal = {Physical Review. C, Nuclear Physics},
number = 3,
volume = 73,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}