/sup 7/Li+/sup 12/C: Excitation of projectile and target states and single-nucleon stripping

Journal Article · Sat Mar 01 04:00:00 EST 1986 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.33.915· OSTI ID:6052226

Cook, J; Stephens, M N; Kemper, K W; Abdallah, A K

Detailed cross sections out to 170/sup 0/ c.m. for elastic scattering and the excitation of states in /sup 7/Li and in /sup 12/C have been determined by bombarding /sup 12/C targets with 34 MeV /sup 7/Li beams and /sup 7/Li targets with /sup 12/C beams at the same c.m. energy. The present results show that the direct breakup total cross section for /sup 7/Li is about 25 times larger than the sequential total cross section to the (7/2)/sup -/ 4.63 MeV state of /sup 7/Li. In addition, single neutron and proton stripping angular distributions have been measured. The distorted-wave Born approximation is unsatisfactory for the excitation of the 1/2/sup -/ 0.48 MeV state of /sup 7/Li, the 2/sup +/ 4.44 MeV state of /sup 12/C, and the mutual excitation of these two states. Coupled channels calculations, using the rotation-vibration model, describe the excitation of states in /sup 12/C well and find K = 3 for the 3/sup -/ 9.64 MeV state. Poor fits are obtained to the projectile and mutual excitation data with coupled channels calculations. Finite range distorted-wave Born approximation calculations of single-nucleon stripping are in good agreement with the data. Extracted deformation lengths and spectroscopic factors are consistent with those from other studies.

• Research Organization: Department of Physics, University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
• OSTI ID: 6052226
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 33:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL ISOTOPES
ANGULAR DISTRIBUTION
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BORN APPROXIMATION
CARBON 12
CARBON 12 REACTIONS
CARBON 12 TARGET
CARBON 13
CARBON ISOTOPES
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL THEORY
CROSS SECTIONS
DIRECT REACTIONS
DISTRIBUTION
DWBA
ELASTIC SCATTERING
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXCITED STATES
HEAVY ION REACTIONS
INELASTIC SCATTERING
ISOTOPES
LIGHT NUCLEI
LITHIUM 7
LITHIUM 7 REACTIONS
LITHIUM 7 TARGET
LITHIUM ISOTOPES
MEV RANGE
MEV RANGE 10-100
MINUTES LIVING RADIOISOTOPES
NITROGEN 13
NITROGEN ISOTOPES
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
ONE-NUCLEON TRANSFER REACTIONS
RADIOISOTOPES
ROTATIONAL STATES
SCATTERING
STABLE ISOTOPES
STRIPPING
TARGETS
TOTAL CROSS SECTIONS
TRANSFER REACTIONS
VIBRATIONAL STATES