Optical-model potential in single-nucleon-transfer reactions induced by heavy ions

Journal Article · Sat Jan 01 04:00:00 EST 1977 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.15.292· OSTI ID:7124172

Henning, W; Eisen, Y; Erskine, J R; Kovar, D G; Zeidman, B

Elastic scattering angular distributions were measured for /sup 48/Ca + /sup 16/O at 56 MeV and for /sup 45/Sc + /sup 15/N at 47.53 MeV. Extensive searches and systematic analyses of the optical-model potentials were performed to study ambiguities. Various potential sets that fit elastic scattering were used in distorted-wave Born approximation calculations of single-nucleon transfers. To a high degree the optical potential ambiguities that exist for elastic scattering persist for the transfer predictions. The distorted-wave Born approximation calculations are compared to experimental angular distributions of the single-proton transfer reactions /sup 48/Ca(/sup 16/O, /sup 15/N)/sup 49/Sc and /sup 48/Ca(/sup 19/F, /sup 18/O)/sup 49/Sc at 56 MeV and /sup 48/Ca(/sup 15/N, /sup 14/C)/sup 49/Sc at 48 MeV. The transfers are well predicted by the distorted-wave Born approximation when there is l matching between the entrance and exit channel dominant partial waves. For cases of l mismatch the calculations do not reproduce the data. This disagreement cannot be removed by changes in the optical potentials, if these are still required to describe elastic scattering. These results suggest the possible presence of reaction processes other than those treated in the conventional distorted-wave Born approximation amplitude. (AIP)

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 7124172
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 15:1; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651525* -- Nuclear Properties & Reactions
A=39-58
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORN APPROXIMATION
CALCIUM 48 TARGET
CARBON 14
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
DIRECT REACTIONS
DISTRIBUTION
DWBA
ELASTIC SCATTERING
ENERGY RANGE
EVEN-EVEN NUCLEI
FLUORINE 19 REACTIONS
HEAVY ION REACTIONS
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIGHT NUCLEI
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NITROGEN 15
NITROGEN 15 REACTIONS
NITROGEN ISOTOPES
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
ONE-NUCLEON TRANSFER REACTIONS
OPTICAL MODELS
OXYGEN 16 REACTIONS
OXYGEN 18
OXYGEN ISOTOPES
PARTIAL WAVES
RADIOISOTOPES
SCANDIUM 45 TARGET
SCANDIUM 49
SCANDIUM ISOTOPES
SCATTERING
STABLE ISOTOPES
STRIPPING
TARGETS
TRANSFER REACTIONS
YEARS LIVING RADIOISOTOPES