β-decay feeding intensity distributions for 103,104m Nb

Gombas, J.; DeYoung, P. A.; Spyrou, A.; Dombos, A. C.; Algora, A.; Baumann, T.; Crider, B.; Engel, J.; Ginter, T.; Kwan, E.; Liddick, S. N.; Lyons, S.; Naqvi, F.; Ney, E. M.; Pereira, J.; Prokop, C.; Ong, W.; Quinn, S.; Scriven, D. P.; Simon, A.; Sumithrarachchi, C.

doi:10.1103/physrevc.103.035803

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β-decay feeding intensity distributions for 103,104m Nb

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Abstract

The β decays of 103,104m Nb were studied with the Summing NaI(Tl) (SuN) detector at the National Superconducting Cyclotron Laboratory. The β-decay feeding intensity distribution I β (E) for each isotope was extracted by measuring γ rays in coincidence with an emitted electron. The I β (E) was extracted via the total absorption spectroscopy technique. The I β (E) for each nucleus was compared to predictions made by the quasiparticle random-phase approximation (QRPA) model which is commonly used to calculate β-decay properties for astrophysical applications. The main goal was to provide experimental data for neutron-rich nuclei, relevant to the astrophysical r process. In addition, the extracted β-decay feeding intensity distributions can lead to a better understanding of nuclear structure in a region of rapid structure changes around A = 100. Finally, experimental data for 104m Nb are also of interest to antineutrino studies of nuclear reactors

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Gombas, J., DeYoung, P. A., Spyrou, A., Dombos, A. C., Algora, A., Baumann, T., Crider, B., Engel, J., Ginter, T., Kwan, E., Liddick, S. N., Lyons, S., Naqvi, F., Ney, E. M., Pereira, J., Prokop, C., Ong, W., Quinn, S., Scriven, D. P., Simon, A., Sumithrarachchi, C.. 2021-03-03. β-decay feeding intensity distributions for 103,104m Nb. https://doi.org/10.1103/physrevc.103.035803

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