Effect of the momentum dependence of the nuclear symmetry potential on the {pi}{sup -}/{pi}{sup +} ratio in heavy-ion collisions

Journal Article · Fri Apr 15 04:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.047602· OSTI ID:21499638

Yuan, Gao ^[1]; Lei, Zhang ^[1]; Hongfei, Zhang; Ximeng, Chen ^[2]; Gaochan, Yong ^[3]

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1. School of Information Engineering, Hangzhou Dianzi University, Hangzhou 310018 (China)
2. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000 (China)
3. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)

In the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, the effect of the momentum dependence of the nuclear symmetry potential on the {pi}{sup -}/{pi}{sup +} ratio in the neutron-rich reaction {sup 132}Sn +{sup 124}Sn at a beam energy of 400 MeV/nucleon is studied. We find that the momentum dependence of the nuclear symmetry potential affects the compressed density of colliding nuclei, the numbers of produced {pi}{sup -} and {pi}{sup +}, as well as the value of the {pi}{sup -}/{pi}{sup +} ratio. The momentum-dependent nuclear symmetry potential increases the compressed density of colliding nuclei, the number of produced resonances {Delta}(1232), N{sup *}(1440), {pi}{sup -}, and {pi}{sup +}, as well as the value of the {pi}{sup -}/{pi}{sup +} ratio.

• OSTI ID: 21499638
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 83; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BEAMS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BOSONS
DELTA BARYONS
DELTA-1232 BARYONS
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
FERMIONS
HADRONS
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
ISOSPIN
ISOTOPES
MESONS
MEV RANGE
MEV RANGE 100-1000
N BARYONS
N*BARYONS
N-1440 BARYONS
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARTICLE PROPERTIES
PIONS
PIONS MINUS
PIONS PLUS
POTENTIALS
PSEUDOSCALAR MESONS
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
SIMULATION
STABLE ISOTOPES
SYMMETRY
TIN 124
TIN 132
TIN ISOTOPES
TRANSPORT THEORY