Collective Flow of image Meson within Covariant Kaon Dynamics Original Research Article

Collective flow of K+ mesons in heavy ion collisions at SIS energies is investigated within the covariant kaon dynamics. The theoretical results calculated by using quantum molecular dynamics reasonably reproduce properties of the K+ anti-flow. This means that the features of K+ collective flow clearly favor the existence of an in-medium repulsive potential for K+ meson. It is also shown that the rapidity distribution of K+ meson is more sensitive to the nuclear equation of state than the differential directed flow.