Abstract
Total reaction cross sections have been measured for the following reactions and energy intervals: 11B+ 11B, E c.m. = 1.56–3.65 MeV; 10B+ 11B, E c.m. = 1.61–3.94 MeV; 10B+ 10B, E c.m. = 1.84–3.66 MeV. Absolute cross sections were extracted from the prompt γ-rays emitted by the various residual nuclei and measured by large NaI detectors. The absolute accuracy of the method is thoroughly discussed and tested via a measurement of the 12C+ 12C reaction. For all three boron cases measured neither intermediate nor giant type resonances were observed. The cross sections are well described by optical model calculations based on lowenergy 11B+ 11B elastic scattering parameter sets.
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