Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-08-30
Phys.Rev.C54:2159-2162,1996
Physics
Nuclear Physics
Nuclear Theory
12 pages, 2 postscript figures omitted in the original submission are included, to appear in Phys. Rev. C
Scientific paper
10.1103/PhysRevC.54.R2159
We study antikaon flow in heavy-ion collisions at SIS energies based on the relativistic transport model (RVUU 1.0). The production of antikaons from both baryon-baryon and pion-baryon collisions are included. Taking into account only elastic and inelastic collisions of the antikaon with nucleons and neglecting its mean-field potential as in the cascade model, a strong antiflow or anti-correlation of antikaons with respect to nucleons is seen as a result of the strong absorption of antikaons by nucleons. However, the antiflow of antikaons disappears after including also their propagation in the attractive mean-field potential. The experimental measurement of antikaon flow in heavy-ion collision will be very useful in shedding lights on the relative importance of antikaon absorption versus its mean-field potential.
Ko Che Ming
Li Gu-Qiang
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