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Feb 15 – 18, 2022
America/Vancouver timezone
WNPPC2022 Booklet has been added. See also information about today's special guest: Dr. Eden Hennessey

Mirror Symmetry in the $f_{1/2}$ Shell Below $^{56}$Ni, Excited States and Electromagnetic Transition Rates in $^{55}$Ni and $^{55}$Co

Feb 15, 2022, 8:48 AM


Nuclear and Particle Physics Nuclear Physics


Tyson Schilbach (Simon Fraser University Physics Department)


Experiment S1758 aims to explore the charge dependence of the strong nuclear interaction by probing $^{55}$Ni and $^{55}$Co near the $\mathit{doubly}$ $\mathit{magic}$ $^{56}$Ni. This will be achieved by impinging beams of radioactive $^{20}$Na and stable $^{20}$Ne upon $^{40}$Ca targets to produce $^{55}$Ni and $^{55}$Co, respectively. Charged particles and $\gamma$-rays will be detected by combining TRIUMF-ISAC Gamma-Ray Escape Suppressed Spectrometer (TIGRESS), the TIGRESS Integrated Plunger (TIP) and the CsI Ball. This trio allows for a higher degree of sensitivity when in unison. Data analysis will involve: transition rate reconstruction using the Doppler-Shift Attenuation Method (DSAM), Doppler-shift lineshape profile extraction from Monte Carlo simulations via the GEANT4 framework, and lifetime extraction from minimizing a $\chi^2$ goodness-of-fit between the measured and simulated lineshapes. The results will paint a clearer picture of the charge dependence of the strong nuclear interaction.

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Primary author

Tyson Schilbach (Simon Fraser University Physics Department)

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