Abstract
The mass of has been measured with the JYFLTRAP double-Penning-trap mass spectrometer at the Ion Guide Isotope Separator On-Line (IGISOL) facility. The determined mass-excess value, keV, is 15 times more precise than in the Atomic Mass Evaluation 2012. The quadratic form of the isobaric multiplet mass equation for the quartet at fails and a nonzero cubic term, keV, is obtained when the new mass value is adopted. has been found to be less proton-bound, with a proton separation energy of keV. Energies for the excited states in and the photodisintegration rate on have been determined with significantly improved precision by using the new value. The improved photodisintegration rate helps to constrain astrophysical conditions where can act as a waiting point in the rapid proton capture process in type-I x-ray bursts.
- Received 25 November 2015
- Revised 16 March 2016
DOI:https://doi.org/10.1103/PhysRevC.93.041304
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