engleski

Refractive effects and difference in absorption between ^12C+^16O and ^12C+^18O

Binary channels of the ^12C+^16O and ^12C+^18O reactions have been measured at oxygen bombarding energies between 62 and 124 MeV. Detailed elastic scattering angular distributions have been obtained between 10^o and 140^o in the c.m. The data at 100 MeV are presented and described in terms of optical-model potentials. The difference in absorption in the two systems is evidenced in the elastic large angle yields and can be explained by an increased surface imaginary part of the potential in ^12C+^18O compared with ^12C+^16O.

nuclear physics; heavy ions; nuclear rainbow; optical potential

nije evidentirano