Published March 2006 | Version v1
Journal article Metadata-only

Single and double π-/π+ ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy

Creators

  • 1. Graduate School, Chinese Academy of Science, Beijing 100039 (China)
  • 2. Institute of Modern Physics, Chinese Academy of Science, Lanzhou 730000 (China)
  • 3. Department of Chemistry and Physics, P.O. Box 419, Arkansas State University, State University, Arkansas 72467-0419 (United States)
  • 4. Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000 (China)
  • 5. Institute of Theoretical Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)

Description

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

Additional details

Identifiers

DOI
10.1103/PhysRevC.73.034603;
arXiv
arXiv:nucl-th/0512067v3;

Publishing Information

Journal Title
Physical Review. C, Nuclear Physics
Journal Volume
73
Journal Issue
3
Journal Page Range
p. 034603-034603.5
ISSN
0556-2813
CODEN
PRVCAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37076779
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
DENSITY; HEAVY ION REACTIONS; ISOSPIN; MEV RANGE; PARTICLE PRODUCTION; PIONS MINUS; PIONS PLUS; SYMMETRY; TIN 112; TIN 124; TIN 132; TRANSPORT THEORY
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; EVEN-EVEN NUCLEI; HADRONS; INTERMEDIATE MASS NUCLEI; ISOTOPES; MESONS; NUCLEAR REACTIONS; NUCLEI; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; PIONS; PSEUDOSCALAR MESONS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; STABLE ISOTOPES; TIN ISOTOPES

Optional Information

Notes
(c) 2006 The American Physical Society