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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/215202
Shell evolution of N = 40 isotones towards 60Ca: First spectroscopy of 62Ti
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Excited states in the isotone 62Ti were populated via the 63V62Ti reaction at ∼200 MeV/nucleon at the Radioactive Isotope Beam Factory and studied using γ-ray spectroscopy. The energies of the and transitions, observed here for the first time, indicate a deformed 62Ti ground state. These energies are increased compared to the neighboring 64Cr and 66Fe isotones, suggesting a small decrease of quadrupole collectivity. The present measurement is well reproduced by large-scale shell-model calculations based on effective interactions, while ab initio and beyond mean-field calculations do not yet reproduce our findings. The shell-model calculations for 62Ti show a dominant configuration with four neutrons excited across the gap. Likewise, they indicate that the island of inversion extends down to , disfavoring a possible doubly magic character of the elusive 60Ca.
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SEASTAR Collaboration, et al. Shell evolution of N = 40 isotones towards 60Ca: First spectroscopy of 62Ti. Physics Letters B. 2019. Vol. 800, num. 135071. ISSN 0370-2693. [consulted: 16 of October of 2026]. Available at: https://hdl.handle.net/2445/215202