Breakup threshold anomaly in the elastic scattering for the {sup 6}Li+{sup 90}Zr system

Journal Article · Wed Oct 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.044617· OSTI ID:21192328

Kumawat, H; Jha, V; Roy, B J; Parkar, V V; Santra, S; Kumar, V; Dutta, D; Shukla, P; Pant, L M; Mohanty, A K; Choudhury, R K; Kailas, S ^[1]

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1. Nuclear Physics Division, BARC, Mumbai 400085 (India)

Measurements of elastic scattering for the {sup 6}Li+{sup 90}Zr system has been performed at various energies, namely, 11, 12, 13, 15, 17, 19, 21, 25, and 30 MeV, to study the energy dependence of the interaction potential. Angular distributions have been measured in a wide angular range to extract the behavior of the potential reliably. The data have been analyzed using the phenomenological Woods-Saxon shaped optical potential and the double folding potential. The potential behavior shows the characteristics of the breakup threshold anomaly, namely, the increase in the imaginary potential near the barrier with a small reduction in the real part. Continuum-discretized-coupled-channel (CDCC) calculations give a good description of the measured elastic scattering data and predict large breakup coupling effects. The polarization potentials extracted from the CDCC calculations have been studied for the present system along with those for the {sup 6}Li+{sup 208}Pb, and {sup 6}Li+{sup 28}Si systems, and a similar energy dependence has been obtained for all the cases considered.

• OSTI ID: 21192328
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
COUPLED CHANNEL THEORY
COUPLING
ELASTIC SCATTERING
ENERGY DEPENDENCE
INTERACTIONS
LEAD 208
LITHIUM 6
MEV RANGE 10-100
NUCLEAR REACTIONS
OPTICAL MODELS
POLARIZATION
REDUCTION
SILICON 28
SIMULATION
WOODS-SAXON POTENTIAL
ZIRCONIUM 90