Kaon and Lambda productions in relativistic heavy ion collisions

A microscopic approach has been employed to study the kaon and Λ productions in heavy ion collisions. The productions of image and Λ have been studied within the framework of Boltzmann transport equation for various beam energies. We find a non-monotonic horn like structure for image and image when plotted against centre of mass energies (image) with the assumption of initial partonic phase for image shows a monotonic nature when a hadronic initial state is considered for all image. Experimental values of image for different image are also reproduced within the ambit of the same formalism.