Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-06-29
Int.J.Mod.Phys. A21 (2006) 449-460
Physics
High Energy Physics
High Energy Physics - Phenomenology
1+14 pages, 14 figures, added references and comments, To appear in Int. Journal of Modern Phys. A
Scientific paper
10.1142/S0217751X06030898
In order to extract information about behavior of polarized gluons in the nucleon, charmed hadron productions, i.e. D* meson and Lambda_c baryon productions, are studied in polarized pp reactions at BNL-RHIC energy. For these processes, the spin correlation asymmetry D_{LL} between the target proton and the produced charmed hadron, and its statistical sensitivity delta D_{LL} are calculated. From analyses on these processes, we found that the pseudo-rapidity distribution of D_{LL} in the limited transverse momentum region is quite effective for distinguishing the model of polarized gluons as well as the model of spin-dependent fragmentation functions.
Morii Toshiyuki
Ohkuma Kazumasa
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