New approach to spin assignments of intermediate structures in [sup 12]C([sup 16]O,[sup 12]C[2[sub 1][sup +]])[sup 16]O

Journal Article · Wed Jun 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.49.3305· OSTI ID:7116728

Sugiyama, Y; Tomita, Y; Ikezoe, H; Yamanouchi, Y; Ideno, K; Hamada, S ^[1]; Hijiya, M; Sugimitsu, T; Mukae, T; Nakamoto, K; Utsunomiya, K; Okamoto, T; Mitsuoka, S; Matsuo, M ^[2]; Fujita, H ^[3]

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1. Advanced Science Research Center, Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki-ken 319-11 (Japan)
2. Department of Physics, Kyushu University, Fukuoka 812 (Japan)
3. Daiichi College of Pharmaceutical Sciences, Fukuoka 815 (Japan)

Magnetic substate populations for the 2[sup +] state at 4.44 MeV in [sup 12]C were measured in resonant [sup 12]C+[sup 16]O inelastic scattering by the [gamma]-ray recoil method. The [ital m]-substate population has been determined in the coordinate frame where a quantization axis is taken along the center of mass scattering angle of a reaction product. This coordinate frame gives an advantage that a resonance spin [ital J] can be obtained directly from [ital m]-substate angular distributions compared with the beam-axis frame. In addition a decay [ital L] value is sensitive to the relative intensity between each [ital m]-substate cross section. Our data suggest a spin assignment of [ital J][sup [pi]]=16[sup +] or 17[sup [minus]] for the structures at [ital E][sub c.m.]=29.8 MeV and 31.8 MeV. Both structures are determined to decay dominantly through the aligned configuration of [ital L]=[ital J][minus]2.

• OSTI ID: 7116728
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 49:6; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663110 -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663450* -- Heavy-Ion-Induced Reactions & Scattering-- (1992-)
663520 -- Nuclear Mass Ranges-- A=6-19-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR MOMENTUM
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
HEAVY ION REACTIONS
INELASTIC SCATTERING
INTEGRAL CROSS SECTIONS
INTERMEDIATE STRUCTURE
NUCLEAR REACTIONS
OXYGEN 16 REACTIONS
PARTICLE PROPERTIES
POLARIZATION
RESONANCE
SCATTERING
SPIN
TARGETS