Recent Measurement and Theoretical Analysis for the Elastic Scattering of the 15N + 11B System
摘要
The elastic scattering angular distribution (AD) for the 15N + 11B system at Elab(15N) = 22.5 MeV has been measured at the DC-60 cyclotron located at INP RK. In addition to our newly measured data, we have reanalyzed the previously measured 15N + 11B cross sections at Elab = 43 MeV using a range of phenomenological and microscopic potentials. The measured AD at 22.5 MeV did not exhibit a significant increase in differential cross sections (DCs) at backward angles (θ > 90°), similar to the previously measured data at Elab = 18.75 MeV and contrary to the measured data at 43 MeV. The measured DC data at backward angles are fairly described using the distorted wave Born approximation (DWBA) method. The α-spectroscopic amplitude (SA) for the 15N → 11B + α configuration was extracted and compared to the available one in the literature.