Naslov
Sub-barrier fusion of 40Ca+94Zr: Interplay of phonon and transfer couplings
(Sub-barrier fusion of 40}; ; ; Ca+94Zr: Interplay of phonon and transfer couplings)

Autori
Stefanini, A. M. ; Behera, B. R. ; Beghini, S. ; Corradi, L. ; Fioretto, E. ; Gadea, A. ; Montagnoli, G. ; Rowley, N. ; Scarlassara, F. ; Szilner, Suzana ; Trotta, M.

Izvornik
Physical Review C - Nuclear Physics (0556-2813) 76 (2007), 1; 014610-5

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
fusion excitation function; fusion barrier distribution; 40Ca+94Zr; sub-barrier cross sections

Sažetak
A precise fusion excitation function has been measured for 40Ca+94Zr at near- and sub-barrier energies, and the fusion barrier distribution has been extracted. Comparing with the existing data for 40, 48Ca+90, 96Zr shows that couplings to inelastic excitations determine the fusion cross sections and the shape of the barrier distributions near the barrier. At lower energies, the two systems possessing neutron-transfer channels with large positive Q-values (40Ca+94, 96Zr) have remarkably similar cross sections, and both show a large enhancement with respect to the other systems and to coupled-channels calculations including up to three quadrupole and octupole phonons in the Zr targets.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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