OBSERVATION OF HEAVY CLUSTER STRUCTURE OF O-18 BY INCLUSIVE MEASUREMENT OF INTERMEDIATE MASS FRAGMENT EMITTED IN O-18+C-12 REACTION AT 80 MeV

An inclusive measurement of the Intermediate Mass Fragments(IMF) with Z=3,4,5 emitted from O-18+C-12 reaction at 80 MeV has been done. Reaction model analysis show that at such low energies IMF s are emitted primarily from projectile breakup. This indicates possible heavy duster configurations of the O-18 nucleus.