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15–18 Feb 2024
Mt. Bromont
Canada/Eastern timezone

Investigating Nuclear Shell Evolution in Neutron-Rich Calcium Isotopes

15 Feb 2024, 20:45
15m
Salon AB (Hotel Chateau Bromont)

Salon AB

Hotel Chateau Bromont

Contributed Oral Nuclear Structure Evening 1 - Feb. 15, 2024

Speaker

Robin Coleman (University of Guelph)

Description

Nuclei away from the line of stability have been found to demonstrate behavior that is inconsistent with the traditional magic numbers of the spherical shell model. This has led to the concept of the evolution of nuclear shell structure in exotic nuclei, and the neutron-rich calcium isotopes are a key testing ground of these theories; there have been conflicting results from various experiments as to the true nature of a sub-shell closure for neutron-rich nuclei around $^{52}$Ca. An experiment was performed at the ISAC facility of TRIUMF; $^{52}$K, $^{53}$K, and $^{54}$K were delivered to the GRIFFIN gamma-ray spectrometer paired with the SCEPTAR and the ZDS ancillary detectors for beta-tagging, as well as DESCANT for neutron-tagging. Using this powerful combination of detectors, we combine the results to construct level schemes for the isotopes populated in the subsequent beta-decay. Preliminary results from the analysis of the gamma, beta, and neutron spectra will be presented and discussed in the context of shell model calculations in neutron-rich nuclei.

Your current academic level, PhD student
Your Email rcolem01@uoguelph.ca
Affiliation University of Guelph
Supervisor Carl Svensson
Supervisor Email sven@uoguelph.ca

Primary author

Robin Coleman (University of Guelph)

Co-authors

Prof. C.E. Svensson (University of Guelph) Mr A. Talebitaher (University of Regina) Dr A.B. Garnsworthy (TRIUMF) Dr A.J. Radich (University of Guelph) Dr A.T. Laffoley (University of Guelph) Andrew MacLean (University of Guelph) Dr B. Olaizola (TRIUMF) Prof. C. Andreoiu (Simon Fraser University) Dr C. Griffin (TRIUMF) Dr C. Paxman (TRIUMF) Dr C. Porzio (LBNL) Mr C.R. Natzke (Colorado School of Mines) Mr D. Yates (University of British Columbia) Prof. F. Sarazin (Colorado School of Mines) Mr F. Wu (Simon Fraser University) Dr F.H. Garcia (LBNL) Dr G. Carpenter (TRIUMF) Dr G.C. Ball (TRIUMF) Prof. G.F. Grinyer (University of Regina) Dr H. Bidaman (University of Guelph) Dr K. Whitmore (Simon Fraser University) Ms M. Hanley (Colorado School of Mines) Dr M. Rocchini (INFN) Mr M.S. Martin (Simon Fraser University) Paul Garrett (University of Guelph) Dr R.S. Lubna (TRIUMF) Ms S. Buck (University of Guelph) Mr S. Shadrick (Colorado School of Mines) Prof. S.S. Bhattacharjee (TRIUMF) Samantha Buck (University of Guelph) Shivani Sharma (University of Regina) Ms T. Zidar (University of Guelph) Dr V. Bildstein (University of Guelph) Dr V. Vedia (TRIUMF)

Presentation materials