Singly charmed baryons in nuclear matter based on a chiral soliton model

초록

We present in this talk a recent investigation on properties of singly charmed heavy baryons in nuclear matter. The calculation is performed, based on an SU(3) Skyrme model with π, ρ and ω mesons together with heavy mesons. The medium modifications of the charmed baryons are achieved by implementing the changes of properties of the light π, ρ and ω mesons, and the heavy D meson mass in nuclear matter. The parameters of the density functions entering into the medium-modified Lagrangian are fitted to various properties of nuclear matter around the saturation point at normal nuclear matter density. We discuss the results, focussing on how the masses of the charmed baryons undergo changes in nuclear matter.