Medium effects on kaon and antikaon spectra in heavy-ion collisions

Journal Article · Thu Apr 01 00:00:00 EST 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.47.1678· OSTI ID:6643396

Fang, X S; Ko, C M ^[1]; Brown, G E; Koch, V ^[2]

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1. Cyclotron Institute and Physics Department, Texas A M University, College Station, Texas 77843 (United States)
2. Department of Physics, State University of New York, Stony Brook, New York 11794 (United States)

In the linear chiral perturbation theory, both kaon and antikaon masses decrease in dense matter. There is also a repulsive vector potential for the kaon and an attractive one for the antikaon. With these effects included in the relativistic transport model, it is found that the slope parameter of the kaon kinetic energy distribution is larger than that of the antikaon. This is consistent with the experimental data from heavy-ion collisions in the Alternating Gradient Synchrotron experiments at Brookhaven.

• DOE Contract Number: FG02-88ER40388
• OSTI ID: 6643396
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Vol. 47:4; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
HEAVY ION REACTIONS
KAONS
NUCLEAR MATTER
ANTIKAONS
CHIRAL SYMMETRY
DISTRIBUTION FUNCTIONS
EFFECTIVE MASS
KAON-NUCLEON INTERACTIONS
KINETIC ENERGY
NUCLEON-NUCLEON INTERACTIONS
PERTURBATION THEORY
RELATIVISTIC RANGE
ANTIMATTER
ANTIPARTICLES
BARYON-BARYON INTERACTIONS
BOSONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MASS
MATTER
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUCLEAR REACTIONS
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
STRANGE MESONS
STRANGE PARTICLES
SYMMETRY
663450* - Heavy-Ion-Induced Reactions & Scattering- (1992-)
663300 - Nuclear Reactions & Scattering
General- (1992-)