Use of Open Charm Production for the In-Medium Effect in Nuclear Collisions at the Future GSI Facility

We present the use of open charm production for in-medium modification of D mesons in dense and hot nuclear matter in the future heavy-ion synchrotron, SIS200, at Gesellschaft für Schwerionenforschung mbH (GSI), Darmstadt, Germany. For the mass modification of D mesons, we adopt the results from the quark-meson coupling model. We propose to measure the yield ratio of D ^- to D⁺ in nuclear collisions and the open charm pair production in nuclear collisions relative to that in elementary pp collisions as functions of the beam energy and the baryon density of the fireball at beam energies close to the production threshold. The experimental prospect of the Compressed Baryonic Matter (CBM) experiment for the open charm production is also discussed.