出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:Recent calculations suggest that, at late times in the r-process, the rate of neutron capture by
130Sn has a significant impact on nucleosynthesis. Direct capture into low-lying bound states is
likely the dominant reaction in the r-process near the N=82 closed shell, so reaction rates are
strongly impacted by the properties of neutron single particle states in this region. In order to
investigate these properties, we have acquired (d,p) reaction data in the A~132 region in inverse
kinematics using ~630 MeV beams (4.85 MeV/u for 130Sn) and CD2 targets. An array of Si strip
detectors, including SIDAR and an early implementation of the new Oak Ridge Rutgers
University Barrel Array (ORRUBA), was used to detect reaction products. Preliminary results
for the 130Sn(d,p)131Sn experiment are reported.