(p,n) reaction on /sup 13/C, /sup 14/C, and /sup 14/N and the effective nucleon-nucleon interaction
Differential cross sections for the (p,n) reaction on /sup 14/N and /sup 13/C leading to the ground states of /sup 14/O and /sup 13/N have been obtained with a gas-cell target for a mean bombarding energy of E/sub p/ = 35.2 MeV. Differential cross sections for the (p,n) reaction of /sup 14/C leading to the first three levels in /sup 14/N have been obtained with an isotopically-enriched graphite target for bombarding energies of 25.7, 35, and 45 MeV. The /sup 14/C(p,n/sub 1/) /sup 14/N(2.31 MeV) cross sections have been analyzed with Lane-model distorted-waves Born approximation (DWBA) calculations to extract energy-dependent well depths for the isovector part of the optical potential. These isovector well depths have been combined with a recently reported set of optical parameters derived from elastic proton scattering on /sup 14/N. The resulting optical potential, which should be especially suitable for nucleon scattering on A = 14 targets in the energy range from 25 to 45 MeV, has been used in microscopic DWBA analyses of the five (p,n) differential cross sections obtained at E/sub p/ = 35 MeV. Strengths for the central V/sub t/ and V/sub st/ and tensor V/sub Tt/ components of the effective interaction have been extracted and the tensor strength is found to be larger than that reported in other recent studies. A comparison of the isospin-symmetric /sup 14/C(p,n/sub 0/) /sup 14/N(g.s.), /sup 14/N(p,n/sub 0/) /sup 14/O(g.s.), and /sup 14/N(p,p') /sup 14/N(2.31 MeV) reactions has been made and it is found that unexpected differences between the angular distributions cannot be easily explained by the DWBA.
- Research Organization:
- Virginia Univ., Charlottesville (USA)
- OSTI ID:
- 5162399
- Country of Publication:
- United States
- Language:
- English
Similar Records
/sup 14/C( p,n)/sup 14/N and the isovector tensor component of the effective two-nucleon interaction
/sup 14/N(p,p')/sup 14/N(2. 31 MeV) reaction at 159. 4 MeV
Related Subjects
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BORN APPROXIMATION
CARBON 13 TARGET
CARBON 14 TARGET
CHARGE-EXCHANGE REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DWBA
ELECTRON CAPTURE RADIOISOTOPES
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
INFORMATION
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NITROGEN 13
NITROGEN 14 TARGET
NITROGEN ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
NUMERICAL DATA
ODD-EVEN NUCLEI
OXYGEN 14
OXYGEN ISOTOPES
PARTICLE INTERACTIONS
PROTON REACTIONS
RADIOISOTOPES
TARGETS