Toward the limit of nuclear binding on the N=Z line : Spectroscopy of Cd 96
- Davies, P. J.
- Park, J.
- Grawe, H.
- Wadsworth, R.
- Gernhäuser, R.
- Krücken, R.
- Nowacki, F.
- Ahn, D. S.
- Ameil, F.
- Baba, H.
- Bäck, T.
- Blank, B.
- Blazhev, A.
- Boutachkov, P.
- Browne, F.
- Čeliković, I.
- Dewald, M.
- Doornenbal, P.
- Faestermann, T.
- Fang, Y.
- De France, G.
- Fukuda, N.
- Gengelbach, A.
- Gerl, J.
- Giovinazzo, J.
- Go, S.
- Goel, N.
- Górska, M.
- Gregor, E.
- Hotaka, H.
- Ilieva, S.
- Inabe, N.
- Isobe, T.
- Jenkins, D. G.
- Jolie, J.
- Jung, H. S.
- Jungclaus, A.
- Kameda, D.
- Kim, G. D.
- Kim, Y. K.
- Kojouharov, I.
- Kubo, T.
- Kurz, N.
- Lewitowicz, M.
- Lorusso, G.
- Lubos, D.
- Maier, L.
- Merchan, E.
- Moschner, K.
- Murai, D.
- Naqvi, F.
- Nishibata, H.
- Nishimura, D.
- Nishimura, S.
- Nishizuka, I.
- Patel, Z.
- Pietralla, N.
- Rajabali, M. M.
- Rice, S.
- Sakurai, H.
- Schaffner, H.
- Shimizu, Y.
- Sinclair, L. F.
- Söderström, P. A.
- Steiger, K.
- Sumikama, T.
- Suzuki, H.
- Takeda, H.
- Taprogge, J.
- Thöle, P.
- Valder, S.
- Wang, Z.
- Warr, N.
- Watanabe, H.
- Werner, V.
- Wu, J.
- Xu, Z. Y.
- Yagi, A.
- Yoshinaga, K.
- Zhu, Y.
Publication date
February 2019
DOI Publisher
American Physical Society (APS)Abstract
A γ-decaying isomeric state (τ1/2=197-17+19 ns) has been identified in Cd96, which is one α particle away from the last known bound N=Z nucleus, Sn100. Comparison of the results with shell-model calculations has allowed a tentative experimental level scheme to be deduced and the isomer to be interpreted as a medium-spin negative-parity spin trap based on the coupling of isoscalar (T=0) and isovector (T=1) neutron-proton pairs. The data also suggest evidence for the population of a 9+ T=1 state, which is predicted by shell-model calculations to be yrast. Such a low-lying T=1 state, which is unknown in lighter mass even-even self-conjugate nuclei, can also be interpreted in terms of the coupling of T=0 and T=1 neutron-proton pairs
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