/sup 24/Mg(/sup 18/O,/sup 16/O)/sup 26/Mg reaction at E18/sub O/=50 MeV including scattering in entrance and exit channel

Journal Article · Fri Oct 31 23:00:00 EST 1980 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.22.1872· OSTI ID:5000913

Bernas, M; Pougheon, F; Roy-Stephan, M; Berg, G P.A.; Berthier, B; Le Fevre, J P; Wildenthal, B H

Cross section angular distributions of /sup 24/Mg(/sup 18/O,/sup 16/O)/sup 26/Mg reaction at 50 MeV incident energy leading to the first four excited states in /sup 26/Mg and the elastic and inelastic scattering for /sup 18/O+/sup 24/Mg at 50 MeV and /sup 16/O+/sup 26/Mg at 56 MeV have been measured in order to investigate the reaction mechanism of the two-nucleon transfer reaction including the analysis of incident and exit channels. The measured angular distributions were analyzed in the framework of the exact finite-range distorted-wave Born approximation. Two neutron transfer amplitudes were determined using the 2s-1d shell model amplitudes calculated by Chung and Wildenthal. The large experimental cross section in contrast to the smallness of the direct transfer amplitude and the peculiar shape of the measured angular distribution of the lowest 2/sup +//sub 1/ state suggests that this level is mainly excited by two-step processes. It is shown that a coupled-channel Born approximation calculation describes successfully the angular distributions of the ground state and the 2/sup +//sub 1/ state in /sup 26/Mg.

• Research Organization: Institut de Physique Nucleaire, BP 1, 91406 Orsay, France
• OSTI ID: 5000913
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 22:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL THEORY
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DIRECT REACTIONS
DISTRIBUTION
DWBA
ELASTIC SCATTERING
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HEAVY ION REACTIONS
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LIGHT NUCLEI
MAGNESIUM 24 TARGET
MAGNESIUM 26
MAGNESIUM 26 TARGET
MAGNESIUM ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MULTI-NUCLEON TRANSFER REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
OXYGEN 16
OXYGEN 16 REACTIONS
OXYGEN 18 REACTIONS
OXYGEN ISOTOPES
PARITY
PARTICLE PROPERTIES
SCATTERING
SHELL MODELS
SPIN
STABLE ISOTOPES
TARGETS
TRANSFER REACTIONS
TWO-NUCLEON TRANSFER REACTIONS