دورية أكاديمية
Shell evolution of N=40 isotones towards 60 Ca: First spectroscopy of 62 Ti
| العنوان: | Shell evolution of N=40 isotones towards 60 Ca: First spectroscopy of 62 Ti |
|---|---|
| المؤلفون: | Cortés, M., Rodriguez, W., Doornenbal, P., Obertelli, A., Holt, J., Lenzi, S., Menéndez, J., Nowacki, F., Ogata, K., Poves, A., Rodríguez, T., Schwenk, A., Simonis, J., Stroberg, S., Yoshida, K., Achouri, L., Baba, H., Browne, F., Calvet, D., Château, F., Chen, S., Chiga, N., Corsi, A., Delbart, A., Gheller, J., Giganon, A., Gillibert, A., Hilaire, C., Isobe, T., Kobayashi, T., Kubota, Y., Lapoux, V., Liu, H., Motobayashi, T., Murray, I., Otsu, H., Panin, V., Paul, N., Sakurai, H., Sasano, M., Steppenbeck, D., Stuhl, L., Sun, Y., Togano, Y., Uesaka, T., Wimmer, K., Yoneda, K., Aktas, O., Aumann, T., Chung, L., Flavigny, F., Franchoo, S., Gašparić, I., Gerst, R., Gibelin, J., Hahn, K., Kim, D., Koiwai, T., Kondo, Y., Koseoglou, P., Lee, J., Lehr, C., Linh, B., Lokotko, T., MacCormick, M., Moschner, K., Nakamura, T., Park, S., Rossi, D., Sahin, E., Sohler, D., Söderström, P., Takeuchi, S., Toernqvist, H., Vaquero, V., Wagner, V., Wang, S., Werner, V., Xu, X., Yamada, H., Yan, D., Yang, Z., Yasuda, M., Zanetti, L. |
| المصدر: | Physics Letters B |
| سنة النشر: | 2020 |
| المجموعة: | Max Planck Society: MPG.PuRe |
| مصطلحات موضوعية: | Starke Wechselwirkung und exotische Kerne – Abteilung Blaum |
| الوصف: | Excited states in the $N=40$ isotone $^{62}$Ti were populated via the $^{63}$V$(p,2p)$$^{62}$Ti reaction at $\sim$200~MeV/u at the Radioactive Isotope Beam Factory and studied using $\gamma$-ray spectroscopy. The energies of the $2^+_1 \rightarrow 0^{+}_{\mathrm{gs}}$ and $4^+_1 \rightarrow 2^+_1$ 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 with four neutrons excited across the $N=40$ gap. Likewise, they indicate that the $N=40$ island of inversion extends down to $Z=20$, disfavoring a possible doubly magic character of the elusive $^{60}$Ca. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| العلاقة: | info:eu-repo/semantics/altIdentifier/arxiv/1912.07887; info:eu-repo/semantics/altIdentifier/urn/http://arxiv.org/abs/1912.07887Test; http://hdl.handle.net/21.11116/0000-0005-80B8-ATest; http://hdl.handle.net/21.11116/0000-0005-80BA-8Test |
| الإتاحة: | https://doi.org/10.1016/j.physletb.2019.135071Test http://hdl.handle.net/21.11116/0000-0005-80B8-ATest http://hdl.handle.net/21.11116/0000-0005-80BA-8Test |
| حقوق: | info:eu-repo/semantics/openAccess ; http://arxiv.org/licenses/nonexclusive-distrib/1.0Test/ |
| رقم الانضمام: | edsbas.1B40EBC |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |