Survey of the (. cap alpha. ,/sup 2/He) reaction on 1p- and 2s1d-shell nuclei

Journal Article · Sat Jul 01 00:00:00 EDT 1978 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.18.9· OSTI ID:6751448

Jahn, R; Stahel, D P; Wozniak, G J; de Meijer, R J; Cerny, J

A /sup 2/He detection system has been developed and used to investigate the (..cap alpha..,/sup 2/He) reaction at bombarding energies of 55 and 65 MeV on targets of /sup 12/C, /sup 13/C, /sup 14/N, /sup 15/N, /sup 16/O, /sup 18/O, /sup 20/Ne, /sup 22/Ne, /sup 24/Mg, /sup 26/Mg, /sup 28/Si, /sup 29/Si, /sup 32/S, /sup 36/Ar, /sup 38/Ar, and /sup 40/Ca. Preferential population of two-neutron states with dominant (d/sub 5/2/)/sup 2//sub 4/, (d/sub 3/2/f/sub 7/2/)/sub 5/, and (f/sub 7/2/)/sup 2//sub 6/ character was observed. A linear A dependence of the binding energies of the J/sup ..pi../ = 5/sup -/ and 6/sup +/ states was obtained. This systematic behavior is well described by the Bansal-French model, using the parameters a = - 0.30 MeV and b = 2.6 MeV. Simple shell-model calculations for the 2n configurations are in good agreement with the experimental data.

• Research Organization: Department of Chemistry and Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 6751448
• Journal Information: Phys. Rev., C; (United States), Vol. 18:1
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
TWO-NUCLEON TRANSFER REACTIONS
ARGON 36 TARGET
ARGON 38 TARGET
CALCIUM 40 TARGET
CARBON 12 TARGET
CARBON 13 TARGET
MAGNESIUM 24 TARGET
MAGNESIUM 26 TARGET
NEON 20 TARGET
NEON 22 TARGET
NITROGEN 14 TARGET
NITROGEN 15 TARGET
OXYGEN 16 TARGET
OXYGEN 18 TARGET
SILICON 28 TARGET
SILICON 29 TARGET
SULFUR 32 TARGET
BINDING ENERGY
CROSS SECTIONS
HIGH SPIN STATES
MEV RANGE 10-100
NEUTRONS
PARITY
SHELL MODELS
SPIN
ANGULAR MOMENTUM
BARYONS
CHARGED-PARTICLE REACTIONS
DIRECT REACTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY LEVELS
ENERGY RANGE
FERMIONS
HADRONS
MATHEMATICAL MODELS
MEV RANGE
MULTI-NUCLEON TRANSFER REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEONS
PARTICLE PROPERTIES
TARGETS
TRANSFER REACTIONS
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