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Experiments at CERN
Title	Penning-trap mass spectrometry of neutron-rich copper isotopes for probing the Z = 28 and N = 50 shell closures
Author(s)	Schweikhard, L C ; Manea, V
Experiment	IS535
Greybook	See IS535 experiment
Approved	29 February 2012
Status	Completed on 18 May 2020
Collaboration	ISOLDE
Accelerator	CERN ISOLDE
Abstract	We propose to perform a Penning-trap mass measurement of $^{79}$Cu. This exotic N = 50 isotone is the last frontier before the doubly-magic $^{78}$Ni and will greatly improve our knowledge of shell evolution. In the same run, we propose $^{77-78}$Cu mass measurements, as well as the search for a possible isomer in $^{76m}$Cu. The data will help to clarify the structure of the odd proton in the Cu isotopes, the influence on the Z = 28 proton core of the νg$_{9/2}$ orbital filling and the impact of the proton-neutron residual interaction on the strength of the N = 50 shell closure.
Related document(s)	CERN-INTC-2012-004  (INTC-P-321)

Contact: Kreim, S W