CCAST,WORLD LAB,CTR THEORET PHYS,BEIJING,PEOPLES R CHINA
; CARNEGIE MELLON UNIV,DEPT PHYS,PITTSBURGH,PA 15213
; NATL UNIV DEF TECHNOL,DEPT APPL PHYS,CHANGSHA 410073,PEOPLES R CHINA
The charge density of He-3 was calculated in the hybrid quark-hadron model. The results clearly show that the multiquark cluster effect in He-3 is most likely responsible for the observed central ''hole'' of He-3 charge density.