DSpace at EWHA: First spectroscopic study of v 63 at the N=40 island of inversion

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First spectroscopic study of v 63 at the N=40 island of inversion

Authors: Juhász M.M.; Elekes Z.; Sohler D.; Sieja K.; Yoshida K.; Ogata K.; Doornenbal P.; Obertelli A.; Baba H.; Browne F.; Calvet D.; Château F.; Chen S.; Chiga N.; Corsi A.; Cortés M.L.; Delbart A.; Gheller J.-M.; Giganon A.; Gillibert A.; Hilaire C.; Isobe T.; Kobayashi T.; Kubota Y.; Lapoux V.; 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.; Achouri N.L.; Aktas O.; Aumann T.; Chung L.X.; Dombrádi Z.; Flavigny F.; Franchoo S.; Gašparić I.; Gerst R.-B.; Gibelin J.; Hahn K.I.; Kim D.; Koiwai T.; Kondo Y.; Koseoglou P.; Lee J.; Lehr C.; Linh B.D.; Liu H.N.; Lokotko T.; Maccormick M.; Moschner K.; Nakamura T.; Park S.Y.; Rossi D.; Sahin E.; Söderström P.-A.; Takeuchi S.; Törnqvist H.; Vaquero V.; Wagner V.; Wang S.; Werner V.; Xu X.; Yamada H.; Yan D.; Yang Z.; Yasuda M.; Zanetti L.

Abstract: The low-lying level structure of V63 was studied for the first time by the inelastic proton scattering and the proton knock-out reaction in inverse kinematics. The comparison of the newly observed γ-ray transitions at 696(8) keV and 889(16) keV with our shell-model calculations using the Lenzi-Nowacki-Poves-Sieja interaction established two excited states proposed to be the first 11/2- and 9/2- levels. The (p,p′) excitation cross sections were analyzed by the coupled channel formalism assuming pure quadrupole as well as quadrupole+hexadecapole deformations. This resulted in large deformation parameters placing V63 in the island of inversion located below Ni68. © 2021 American Physical Society.