Antikaon flow in heavy-ion collisions: the effects of absorption and mean fields

Abstract

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.

12 pages, 2 postscript figures omitted in the original submission are included, to appear in Phys. Rev. C

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Cited by in corpus (19)

• Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars
• Medium Modified Cross Sections, Temperature and Finite Momentum Effects for Antikaon Production in Heavy-Ion Collisions
• Analysis of Kaon Production at SIS Energies
• Production of K+ and of K- Mesons in Heavy-Ion Collisions from 0.6 to 2.0 AGeV Incident Energy
• Elliptic flow in heavy ion collisions near the balance energy
• Properties of Hadrons in the Nuclear Medium
• Statistical production of antikaon nuclear bound states in heavy ion collisions
• Hadronic Particle Production in Nucleus-Nucleus Collisions
• Antiflow of kaons in relativistic heavy ion collisions
• Medium effects on the flow of strange particles in heavy ion collisions
• $K^{-}/K^{+}$ ratios in relativistic heavy-ion collisions
• Kaon production and propagation at intermediate relativistic energies
• Seeing phi meson through the dilepton spectra in heavy-ion collisions
• Role of phi decays for K- yields in relativistic heavy-ion collisions
• Strangeness Production in Microscopic Transport Models
• Radial flow of kaon mesons in heavy ion reactions
• Kaon differential flow in relativistic heavy-ion collisions
• K+ and K- production in heavy-ion collisions at SIS-energies
• Review of the results of the KaoS Collaboration