Charmed Hadron Production at RHIC
  To extract information about polarized gluon distribution in the proton, charmed hadron, actually \Lambda_c^+, productions at RHIC experiment are studied. We found that the spin correlation asymmetry between the initial proton and the produced \Lambda_c^+ is enable us to distinguish parameterization models of polarized gluons. 
Kazumasa Ohkuma, Toshiyuki Morii, Satoshi Oyama (Kobe Univ.)