Abstract
The transitional nuclei and are investigated after multinucleon-transfer (MNT) and fusion-evaporation reactions. Both nuclei are populated (i) in MNT reactions employing the high-resolution Advanced GAmma Tracking Array (AGATA) coupled to the magnetic spectrometer PRISMA, (ii) in the MNT reaction employing the GAMMASPHERE spectrometer in combination with the gas-detector array CHICO, and (iii) as an evaporation residue after a fusion-evaporation reaction employing the HORUS -ray array at the University of Cologne. The high-spin level schemes are considerably extended above the and isomers in and above the isomer in . The results are compared to the high-spin systematics of the as well as the and chains. Furthermore, evidence is found for a long-lived () isomer in which closes a gap along the isotones. Shell-model calculations employing the SN100PN and PQM130 effective interactions reproduce the experimental findings and provide guidance to the interpretation of the observed high-spin features.
3 More- Received 9 June 2017
DOI:https://doi.org/10.1103/PhysRevC.96.024321
©2017 American Physical Society