Masses ofCo m have been experimentally determined for the first time and found to be more bound than predicted by extrapolations. The isobaric multiplet mass equation for the T = 2 quintet at A = 52 has been studied employing the new mass values. No significant breakdown (beyond the 3σ level) of the quadratic form of the IMME was observed (χ 2 /n = 2.4). The cubic coefficient was 6.0(32) keV (χ 2 /n = 1.1). The excitation energies for the isomer and the T = 2 isobaric analogue state in 52 Co have been determined to be 374(13) keV and 2922(13) keV, respectively. The Q value for the proton decay from the 19/2 − isomer in 53 Co has been determined with an unprecedented precision, Qp = 1558.8(17) keV. The proton separation energies of 52 Co and 53 Ni relevant for the astrophysical rapid proton capture process have been experimentally determined for the first time.

A dedicated spectroscopic study of the β decay of 127 Cd was conducted at the IGISOL facility at the University of Jyväskylä. Following high-resolution mass separation in a Penning trap, β-γ-γ coincidences were used to considerably extend the decay scheme of 127 In. The β-decaying 3/2 + and 11/2 − states in 127 Cd have been identified with the 127 Cd ground state and the 283-keV isomer. Their respective half-lives have been measured to 0.45(12 8) s and 0.36(4) s. The experimentally observed β feeding to excited states of 127 In and the decay scheme of 127 In are discussed in conjunction with large-scale shell-model calculations.

General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal An experimental scheme combining the mass resolving power of a Penning trap with contemporary decay spectroscopy has been established at GSI Darmstadt. The Universal Linear Accelerator (UNILAC) at GSI Darmstadt provided a 48 Ca beam impinging on a thin 170 Er target foil. Subsequent to velocity filtering of reaction products in the Separator for Heavy Ion reaction Products (SHIP), the nuclear ground state of the 5n evaporation channel 213 Ra was mass-selected in SHIPTRAP, and the 213 Ra ions were finally transferred into an array of silicon strip detectors surrounded by large composite germanium detectors. Based on comprehensive GEANT4 simulations and supported by theoretical calculations, the spectroscopic results call for a revision of the decay path of 213 Ra, thereby exemplifying the potential of a combination of a mass-selective Penning trap device with a dedicated nuclear decay station and contemporary GEANT4 simulations.

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