Mass Measurements for the r-Process using the Canadian Penning Trap
ORAL
Abstract
The masses of neutron-rich isotopes are essential to abundance calculations for nuclei produced by the rapid neutron capture process (r-process) during neutron star merger events and other possible astrophysical phenomena. The abundance pattern of nuclei produced by this process shows peaks surrounding neutron shell closures and a smaller peak in the rare-earth region with strong sensitivity to astrophysical conditions. Isotopes in the region of interest for the heaviest r-process peak have been hard to produce, but Argonne National Laboratory's N=126 Factory will utilize multi-nucleon transfer reactions in order to access them. The Canadian Penning Trap (CPT) mass spectrometer is being relocated to embark on a high-precision mass measurement campaign of these nuclides. The commissioning of the N=126 Factory and the planned measurement campaign will be presented.
*This work is supported by the U.S. Department of Energy, Office of Nuclear Physics, Contract No. DE-AC02-06CH11357; by the National Science Foundation, Grant No. PHY-2011890 and 2310059; by the University of Notre Dame; and with the resources of ANL's ATLAS facility, an Office of Science User Facility.
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Presenters
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Alicen M Houff
- University of Notre Dame