Y.Miake,
Univ. of Tsukuba
26
Puzzle of baryon dominance
lIn peripheral, p/p ratio similar to those in ee/pp suggesting fragmentaton process.
lFragmentation process should show np < np as seen in ee/pp.
lIn central Au+Au, p/p ratio increases with centrality, suggesting other mechanism like RECO.
lBut, RCP~1 (Nbinary scaling) implies hard process.
