Medium effects on subthreshold kaon production in heavy-ion collisions

Journal Article · Mon Jan 31 23:00:00 EST 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.R608· OSTI ID:5319482

Fang, X S; Ko, C M; Li, G Q; Zheng, Y M ^[1]

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1. Cyclotron Institute and Physics Department, Texas A M University, College Station, Texas 77843 (United States)

The relativistic transport model is extended to include the kaon degree of freedom. We also take into account the density dependence of the kaon effective mass in nuclear matter and the rescattering of kaons by nucleons. We find that the inclusion of kaon self-energy due to the attractive scalar mean field leads to an enhanced kaon yield in heavy-ion collisions at subthreshold energies. Also, kaon rescatterings are found to affect significantly the final kaon momentum spectra. We compare the theoretical results with recent experimental data from the Heavy-Ion Synchrotron (SIS) at GSI.

• OSTI ID: 5319482
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:2; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663300* -- Nuclear Reactions & Scattering
General-- (1992-)
663450 -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663460 -- Meson- & Hyperon-induced Reactions & Scattering-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY ION REACTIONS
INTERACTIONS
KAON-NUCLEON INTERACTIONS
KAONS
MANY-BODY PROBLEM
MATTER
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUCLEAR MATTER
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PSEUDOSCALAR MESONS
RELATIVISTIC RANGE
SELF-ENERGY
STRANGE MESONS
STRANGE PARTICLES