Heavy Cluster Knockout Reaction {sup 16}O({sup 12}C,2{sup 12}C){sup 4}He and the Nature of the {sup 12}C-{sup 12}C Interaction Potential

Journal Article · Fri Jan 14 00:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.022501· OSTI ID:21532242

Joshi, B N; Jain, Arun K; Gupta, Y K; Biswas, D C; Saxena, A; John, B V; Danu, L S; Vind, R P; Choudhury, R K ^[1]

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1. Nuclear Physics Division, Bhabha Atomic Research Center, Mumbai-400 085 (India)

The heavy cluster knockout reaction {sup 16}O({sup 12}C,2{sup 12}C){sup 4}He performed for the first time, reveals the true nature of the {sup 12}C-{sup 12}C interaction. The observed cross section is enhanced by almost 2 orders of magnitude over the conventional zero range distorted wave impulse approximation (DWIA) predictions. An attractive {sup 12}C-{sup 12}C optical potential, as obtained in the folding model, does not explain the enhanced cross section in the finite range (FR) DWIA framework. The inclusion of a hard core of fairly long range {approx}3.65 fm explains the data. The present investigation of {sup 16}O({sup 12}C,2{sup 12}C){sup 4}He along with the {sup 12}C-{sup 12}C elastic scattering also proves beyond doubt that the folding model's deep attractive heavy ion potentials are unsuitable to describe the highly overlapping heavy ions. The application of FR-DWIA opens up new avenues to use the heavy core knockout for the detailed investigation of heavy as well as Borromean halo nuclei.

• OSTI ID: 21532242
• Journal Information: Physical Review Letters, Vol. 106, Issue 2; Other Information: DOI: 10.1103/PhysRevLett.106.022501; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CARBON 12
CROSS SECTIONS
DISTORTED WAVE THEORY
ELASTIC SCATTERING
FOLDING MODEL
HEAVY IONS
HELIUM 4
IMPULSE APPROXIMATION
INTERACTIONS
KNOCK-OUT REACTIONS
NUCLEAR HALOS
OXYGEN 16
POTENTIALS
APPROXIMATIONS
CALCULATION METHODS
CARBON ISOTOPES
CHARGED PARTICLES
DIRECT REACTIONS
EVEN-EVEN NUCLEI
HELIUM ISOTOPES
IONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
OXYGEN ISOTOPES
SCATTERING
STABLE ISOTOPES