Consequences of covariant kaon dynamics in heavy ion collisions

Abstract

The influence of the chiral mean field on the kaon dynamics in heavy ion reactions is investigated. Inside the nuclear medium the kaons are described as dressed quasi-particles carrying effective masses and momenta. A momentum dependent part of the interaction which resembles a Lorentz force originates from spatial components of the vector field and provides an important contribution to the in-medium kaon dynamics. This contribution is found to counterbalance the influence of the vector potential on the $K^{+}$ in-plane flow to a strong extent. Thus it appears to be difficult to restrict the in-medium potential from the analysis of the corresponding transverse flow.

14 pages, RevTex, 3 PS figures, accepted for publication in Phys. Lett. B

References in corpus (6)

• Kaon production in heavy-ion collisions and maximum mass of neutron stars
• Analysis of Kaon Production at SIS Energies
• K^+ production in the reaction ${}^{58}Ni{+}^{58}Ni$ at incident energies from 1 to 2 AGeV
• Origin of subthreshold K^+ production in heavy ion collisions
• Role of the Coulomb interaction in the flow and the azimuthal distribution of kaons from heavy ion reactions
• Radial flow of kaon mesons in heavy ion reactions

Cited by in corpus (24)

• Probing the nuclear equation of state by $K^{+}$ production in heavy ion collisions
• Strangeness Production close to Threshold in Proton-Nucleus and Heavy-Ion Collisions
• Sideward flow of K+ mesons in Ru+Ru and Ni+Ni reactions near threshold
• Transport Theories for Heavy Ion Collisions in the 1 AGeV Regime
• Self consistent propagation of hyperons and antikaons in nuclear matter based on relativistic chiral SU(3) dynamics
• Transport approaches for the Description of Intermediate-Energy Heavy-Ion Collisions
• Attenuation of phi mesons in gamma A reactions
• Covariant kaon dynamics and kaon flow in heavy ion collisions
• Kaon production and propagation at intermediate relativistic energies
• Strangeness production from $\pi N$ collisions in nuclear matter
• Medium modifications of kaons in pion matter
• Lambda collective flow in heavy ion reactions
• Consequences of kinetic non-equilibrium for the nuclear equation-of-state in heavy ion collision
• Chiral SU(3) Symmetry and Strangeness
• Strangeness production in heavy ion reactions at intermediate energies
• The nuclear equation of state probed by $K^{+}$ production in heavy ion collisions
• The effect of Lorentz-like force on collective flows of K${}^{+}$ in Au+Au collisions at 1.5 GeV/nucleon}{The effect of Lorentz-like force on collective flows of $K^{+}$ in Au+Au collisions at 1.5 GeV/nucleon
• Kaon production at subthreshold energies - what do we learn about the nuclear medium ?
• Kaon differential flow in relativistic heavy-ion collisions
• Transition to meson-dominated matter at RHIC. Consequences for kaon flow
• Analysis of kaon spectra at SIS energies - what remains from the KN potential
• Chiral kaon dynamics in heavy ion collisions
• Directed flow of neutral strange particles at AGS
• K+'s Collective Flow in Heavy-ion Collisions predicted by Covariant Kaon Dynamics