TY  - JOUR
AU  - AGATA Collaboration (Liu, X. et al
AU  - Gadea, A.
AU  - Jurado, M.
AU  - Domingo-Pardo, C.
AU  - Huyuk, T.
AU  - Perez-Vidal, R. M.
PY  - 2022
DA  - 2022//
TI  - Evidence for spherical-oblate shape coexistence in Tc-87
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 034304
EP  - 6pp
VL  - 106
IS  - 3
PB  - Amer Physical Soc
AB  - Excited states in the neutron-deficient nucleus Tc-87 have been studied via the fusion-evaporation reaction 54Fe(36Ar, 2n1p) Tc-87 at 115 MeV beam energy. The AGATA gamma-ray spectrometer coupled to the DIAMANT, NEDA, and Neutron Wall detector arrays for light-particle detection was used to measure the prompt coincidence of gamma rays and light particles. Six transitions from the deexcitation of excited states belonging to a new band in Tc-87 were identified by comparing gamma-ray intensities in the spectra gated under different reaction channel selection conditions. The constructed level structure was compared with the shell model and total Routhian surface calculations. The results indicate that the new band structure in 87Tc is built on a spherical configuration, which is different from that assigned to the previously identified oblate yrast rotational band.
SN  - 2469-9985
UR  - https://doi.org/10.1103/PhysRevC.106.034304
DO  - 10.1103/PhysRevC.106.034304
LA  - English
N1  - WOS:000863087400003
ID  - AGATACollaborationLiu_etal2022
ER  -