title: Lambdac enhancement from strongly coupled quark-gluon plasma.
abstract: We propose the enhancement of Lambdac as a novel quark-gluon plasma signal in heavy ion collisions at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider. Assuming a stable bound diquark state in the strongly coupled quark-gluon plasma near the critical temperature, we argue that the direct two-body collision between a c quark and a [ud] diquark would lead to an enhanced Lambdac production in comparison with the normal three-body collision among independent c, u, and d quarks. In the coalescence model, we find that the Lambdac/D yield ratio is enhanced substantially due to the diquark correlation.
authors.affiliation: Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Republic of Korea.
authors.forename: Su Houng
authors.initials: SH
authors.lastname: Lee
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Ohnishi
authors.forename: Shigehiro
authors.initials: S
authors.lastname: Yasui
authors.forename: In-Kwon
authors.initials: IK
authors.lastname: Yoo
authors.forename: Che Ming
authors.initials: CM
authors.lastname: Ko