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

Journal Article · Wed Mar 31 23:00:00 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]

---

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), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 47:4; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

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