Spectroscopic factors of mirror states near N=Z
ORAL
Abstract
The symmetry between nuclei that are isobars with opposite numbers of protons and neutrons (i.e., mirror nuclei) has often been exploited when there is limited experimental information on one member of the mirror pair. However, the degree to which this mirror symmetry holds is not well known currently, especially for weakly bound or unbound states. As properties of mirror nuclei are often used to determine reaction rates, ascertaining the accuracy of mirror symmetry can be crucial for better understanding nucleosynthesis. The Super-Enge Split-Pole Spectrograph at Florida State University has been used to study A=25 and A=29 mirror pairs using (d,p) and (3He,d) transfer reactions on N=Z targets: 24Mg and 28Si. Using the same target, beam energy per nucleon, and experimental setup, states up to and beyond the respective proton and neutron separation energies were populated with the goal of determining and comparing the spectroscopic factors for each mirror pair and quantifying any asymmetries. Preliminary angular distributions and spectroscopic factors of several excited states in these mirror pairs will be presented.
*This work is supported by the U.S. Department of Energy, Office of Science under Grant No. DE-FG02-96ER40989 and by the National Science Foundation under Grant Nos. PHY-2012522 and PHY-2310059.
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Presenters
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Molly E McLain
- Louisiana State University