Author:
Zidarova R,Cortés M L,Werner V,Koseoglou P,Pietralla N,Doornenbal P,Obertelli A,Otsuka T,Tsunoda Y,Utsuno Y,Achouri N L,Baba H,Browne F,Calvet D,Château F,Chen S,Chiga N,Corsi A,Delbart A,Gheller J-M,Giganon A,Gillibert A,Hilaire C,Isobe T,Kobayashi T,Kubota Y,Lapoux V,Liu H N,Motobayashi T,Murray I,Otsu H,Panin V,Paul N,Rodriguez W,Sakurai H,Sasano M,Steppenbeck D,Stuhl L,Sun Y L,Togano Y,Uesaka T,Wimmer K,Yoneda K,Aktas O,Aumann T,Chung L X,Flavigny F,Franchoo S,Gasparic I,Gerst R-B,Gibelin J,Hahn K I,Kim D,Koiwai T,Kondo Y,Lee J,Lehr C,Linh B D,Lokotko T,MacCormick M,Moschner K,Nakamura T,Park S Y,Rossi D,Sahin E,Söderström P-A,Sohler D,Takeuchi S,Toernqvist H,Vaquero V,Wagner V,Wang S,Xu X,Yamada H,Yan D,Yang Z,Yasuda M,Zanetti L
Abstract
Abstract
The N = 34 isotope 55Sc has been investigated using in-beam γ-ray spectroscopy at the RIKEN Radioactive Isotope Beam Factory. Spectra from the direct (p, pn) reaction as well as indirect reaction channels have been investigated. γ rays with energies 496(10), 570(12), 682(14), 1510(30), 1780(36), 2345(57) and 2470(50) keV have been observed. A level scheme was constructed based on γ
γ coincidence analysis and relative intensities. The results have been compared to the level scheme already reported in literature, as well as to large-scale shell model calculations in the sd − pf model space. A new level at 1510keV, decaying directly to the ground state, has been proposed and spin-parity J
π
= 7/2− was tentatively assigned. The effect of including the ν
g
9/2 orbital is discussed. It can be concluded that the main low-energy properties of 55Sc seem to be included in the original sd − pf model space.
Funder
European Research Council
Bundesministerium für Bildung und Forschung
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal