96Zr(n,gamma ) measurement at the n TOF facility at CERN
2011
The (n,γ ) cross section of 96Zr has been investigated at the CERN n TOF spallation neutron source. Highresolution
time-of-flight measurements using an enriched ZrO2 sample allowed us to analyze 15 resonances
below 40 keV with improved accuracy. On average, the capture widths were found to be 25% smaller than
reported in earlier experiments. If complemented with the contribution by direct radiative capture, the derived Maxwellian averaged cross sections are consistent with activation data at kT = 25 keV. The present results
confirm the astrophysical implications for the s-process branching at 95Zr.
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