Lambdac enhancement from strongly coupled quark-gluon plasma.
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.
Lee
Su Houng
SH
Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Republic of Korea.
Ohnishi
Kazuaki
K
Yasui
Shigehiro
S
Yoo
In-Kwon
IK
Ko
Che Ming
CM