EXOTIC NUCLEAR STRUCTURES OF LIGHT UNSTABLE NUCLEI VIA REACTION CROSS SECTION MEASUREMENT

Reaction cross sections for (11)Be and (8)B on proton targets at 40A - 120A MeV have been measured by the transmission method. With these data, we can discuss the proton-and neutron-density distributions at the nuclear surface independently in principle using the Glauber theory. Our experimental results support that the constituent of halo in (11)Be is neutron dominantly and that of (8)B is proton dominantly.