Rare Ion Beam experiments with ANASEN at the RESOLUT facility
The RESOLUT facility at Florida State University's accelerator laboratory produces beams of short-lived nuclei using the in-flight method. Beams such as He-6, Be-7, Li-8, B-8, O-19 and Al-25 have been successfully used in experiments. Recently, the program has focused on experiments with the new ANASEN detector system, which was commissioned in 2011 and 2012 during a series of experiments. ANASEN is an active-target detector system developed for resonant scattering and transfer reactions, including alpha-resonant scattering, proton-resonant scattering, (α,p) and (d,p) reactions. In particular, ANASEN was used in two experiments studying the energetic location of the d3/2-orbital in neutron-rich nuclei, which is of interest as it determines the location of the neutron drip-line in the Oxygen isotopes. Its unexpected behavior has recently been explained as a consequence of three-body forces . I will present the methods used and the first results of these experiments regarding the spectrum of unbound d3/2 resonances in O-20.
The ANASEN project is a collaboration between Florida State University and Louisiana State University. It is funded by an NSF Major Research Instrumentation grant.
 T. Otsuka et al., Phys. Rev. Lett 105, 032501 (2010)
Argonne Physics Division Seminar Schedule