Astrophysical S factor for {alpha}-capture on {sup 112}Sn in the p-process energy range

The cross section of the reaction {sup 112}Sn({alpha},{gamma}){sup 116}Te has been measured in the energy range of astrophysical interest for the p-process. Highly enriched self-supporting {sup 112}Sn foils were bombarded with {alpha} beams in the effective center of mass energy range from 7.59 to 1...

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Published in:Physical review. C, Nuclear physics Nuclear physics, 2007-02, Vol.75 (2)
Main Authors: Oezkan, N., Efe, G., Gueray, R. T., Palumbo, A., Goerres, J., Lee, H. Y., Lamm, L. O., Rapp, W., Stech, E., Wiescher, M., Gyuerky, Gy, Fueloep, Zs, Somorjai, E., University of Notre Dame, Department of Physics, Notre Dame, Indiana 46556, Institute of Nuclear Research
Format: Article
Language:English
Subjects:
BEAMS
CAPTURE
CENTER-OF-MASS SYSTEM
CLOVER
CROSS SECTIONS
GEOMETRY
MEV RANGE
NUCLEAR PHYSICS AND RADIATION PHYSICS
STATISTICAL MODELS
TELLURIUM 116
TIN 112
VAN DE GRAAFF ACCELERATORS
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Summary:The cross section of the reaction {sup 112}Sn({alpha},{gamma}){sup 116}Te has been measured in the energy range of astrophysical interest for the p-process. Highly enriched self-supporting {sup 112}Sn foils were bombarded with {alpha} beams in the effective center of mass energy range from 7.59 to 11.42 MeV at the Notre Dame FN Tandem Van de Graaff accelerator. The characteristic activity of {sup 116}Te was counted with a pair of large volume Ge clover detectors in close geometry to maximize the detection efficiency. The cross section of the concurrent ({alpha},p) reaction has also been measured. The results are compared with statistical model predictions for different global {alpha}-nucleus potentials.
ISSN:0556-2813
1089-490X
DOI:10.1103/PHYSREVC.75.025801