Shell evolution of $N=40$ isotones towards $^{60}$Ca: First spectroscopy of $^{62}$Ti
- Cortés, M.L.
- Rodriguez, W.
- Doornenbal, P.
- Obertelli, A.
- Holt, J.D.
- Lenzi, S.M.
- Menéndez, J.
- Nowacki, F.
- Ogata, K.
- Poves, A.
- Rodríguez, T.R.
- Schwenk, A.
- Simonis, J.
- Stroberg, S.R.
- Yoshida, K.
- Achouri, 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.
- 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.
- 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.
- Lokotko, T.
- Maccormick, M.
- Moschner, K.
- Nakamura, T.
- Park, S.Y.
- Rossi, D.
- Sahin, E.
- Sohler, D.
- Söderström, P.-A.
- Takeuchi, S.
- Toernqvist, H.
- Vaquero, V.
- Wagner, V.
- Wang, S.
- Werner, V.
- Xu, X.
- Yamada, H.
- Yan, D.
- Yang, Z.
- Yasuda, M.
- Zanetti, L.
DOIAbstract
International audienceExcited states in the N=40 isotone 62 Ti were populated via the 63 V (p,2p) 62 Ti reaction at ∼200 MeV/nucleon at the Radioactive Isotope Beam Factory and studied using γ -ray spectroscopy. The energies of the 21+→0gs+ and 41+→21+ transitions, observed here for the first time, indicate a deformed 62 Ti ground state. These energies are increased compared to the neighboring 64 Cr and 66 Fe isotones, suggesting a small decrease of quadrupole collectivity. The present measurement is well reproduced by large-scale shell-model calculations based on effective interactions, while ab initio and beyond mean-field calculations do not yet reproduce our findings. The shell-model calculations for 62 Ti show a dominant configuration ...
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