2-7 June 2019
Simon Fraser University
America/Vancouver timezone
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Investigating shell evolution in neutron-rich Kr isotopes with transfer reactions

Jun 5, 2019, 12:00 PM
DAC FT I (Simon Fraser University)


Simon Fraser University

Oral (Non-Student) / Orale (non-étudiant(e)) Nuclear Physics / Physique nucléaire (DNP-DPN) W1-10 Nuclear Structure III (DNP) | Structure nucléaire III (DPN)


Dr David Walter (TRIUMF / Saint Mary's University)


Neutron-rich nuclei near the N=50 closed shell are of particular interest for their role in the rapid neutron capture process (r-process) of heavy element nucleosynthesis. Nuclear properties such as neutron capture rates and spectroscopic properties are crucial inputs to constrain theoretical models and improve their predictive power to properties of exotic, neutron-rich isotopes where little to no experimental information is known. In the region of N=50-60, a different trend of shell evolution is hinted for the Kr isotopes compared to the neighboring Zr and Sr isotopic chains, however there is limited information available for neutron-rich Kr isotopes. The systematics of the excited 0+ state along these isotopic chains would provide insight into the neutron orbital occupancies and hence shell evolution in neutron-rich Kr isotopes. To address the unknown excited 0+ states in $^{94}$Kr and $^{92}$Kr, the neutron transfer reactions $^{93}$Kr(d,p) and $^{93}$Kr(d,t) were performed at the ISAC II facility at TRIUMF using the ISAC Charged Particle Spectroscopy Station (IRIS). Information about the experiment and preliminary results will be presented.

Primary authors

Dr David Walter (TRIUMF / Saint Mary's University) Prof. Rituparna Kanungo (TRIUMF / Saint Mary's University) Dr Matthias Holl (TRIUMF / Saint Mary's University) IRIS Collaboration (TRIUMF)

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