Abstract
The reaction plays an important role in the control of the flow path of the slow neutron-capture () nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian () neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the product nuclei. The experimental value of , fairly consistent with a recent calculation, affects the calculated net yield of itself and the whole distribution of nuclei with produced by the weak process in massive stars.
- Received 4 June 2004
DOI:https://doi.org/10.1103/PhysRevLett.94.092504
©2005 American Physical Society