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- W2221330863 abstract "The neutron capture cross section of $sup 138$Ba has been measured with high resolution to 100 keV, and resonance parameters have been extracted. A number of new levels are observed. The s-wave radiative width is found to be six times the p-wave radiative width, and is also considerably larger than for other nuclei in this mass region. Valence capture and enhanced decay to single- particle final states could account for the large s-wave radiative strength. A large positive correlation between GAMMA/sub n/$sup 0$ and GAMMA/sub $gamma$/ for ten s-wave levels was found (rho = 0.67). The following average resonance parameters were deduced: [D] = 7.5 +- 1.5 keV, S$sub 0$ = (0.9 +- 0.4) x 10$sup - 4$, S$sub 1$ approximately equal to 0.5 x 10$sup -4$; [GAMMA/sub $gamma$/]/sub s/ = 310 +- 25 MeV and [GAMMA/sub $gamma$/]/sub p/ = 47 +- 5 MeV. Evidence for a predominant direct capture mechanism for thermal capture is presented. (NL)" @default.
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- W2221330863 date "1975-11-10" @default.
- W2221330863 modified "2023-09-23" @default.
- W2221330863 title "Neutron resonance capture in $sup 138$Ba" @default.
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