Mass Measurements of Proton-Rich Nuclei and Exotic Spectroscopy
In this report we review the progress of recent work aimed at extending our knowledge of proton-rich nuclei. The work focuses on Q-value measurements via the (4He, 8He) reaction, a reaction that populates very proton-rich nuclei by the removal of four neutrons from the most neutron-deficient stable targets. The (4He, 8He) reaction has quite negative Q-values (typically -60 MeV) and low cross section (a few nb/sr), necessitating incident beams with both high energy and high intensity. We first review techniques for performing Q-value measurements with reactions of such low cross section. We then discuss the recent results, including new isobaric quintet tests of the isobaric multiplet mass equation (IMME).
KeywordsSpectroscopic Factor Neutron Transfer Incident Beam Energy Cluster Wave Function Spectroscopic Amplitude
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