Detailed spectroscopy of doubly magic 132Sn

J. Benito, L.M. Fraile, A. Korgul, M. Piersa, E. Adamska, A.N. Andreyev, R. Álvarez-Rodríguez, A.E. Barzakh, G. Benzoni, T. Berry, M.J.G. Borge, M. Carmona, K. Chrysalidis, C. Costache, J.G. Cubiss, T. Day Goodacre, H. de Witte, D.V. Fedorov, V.N. Fedosseev, G. Fernández-MartínezA. Fijałkowska, M. Fila, H. Fynbo, D. Galaviz, P. Galve, M. García-Díez, P.T. Greenlees, R. Grzywacz, L.J. Harkness-Brennan, C. Henrich, M. Huyse, P. Ibáñez, A. Illana, Z. Janas, J. Jolie, D.S. Judson, V. Karayonchev, M. Kicińska-Habior, J. Konki, J. Kurcewicz, I. Lazarus, R. Lică, A. López-Montes, M. Lund, H. Mach, M. Madurga, I. Marroquín, B. Marsh, M.C. Martínez, C. Mazzocchi, N. Mărginean, R. Mărginean, K. Miernik, C. Mihai, R.E. Mihai, E. Nácher, A. Negret, B. Olaizola, R.D. Page, S.V. Paulauskas, S. Pascu, A. Perea, V. Pucknell, P. Rahkila, C. Raison, E. Rapisarda, J.-M. Régis, K. Rezynkina, F. Rotaru, S. Rothe, D. Sánchez-Parcerisa, V. Sánchez-Tembleque, K. Schomacker, G.S. Simpson, Ch Sotty, L. Stan, M. Stănoiu, M. Stryjczyk, O. Tengblad, A. Turturica, J.M. Udías, P. van Duppen, V. Vedia, A. Villa-Abaunza, S. Viñals, W.B. Walters, R. Wadsworth, N. Warr

Research output: Contribution to journalArticlepeer-review

Abstract

The structure of the doubly magic 13250Sn82 has been investigated at the ISOLDE facility at CERN, populated both by the β−decay of 132In and β−-delayed neutron emission of 133In. The level scheme of 132Sn is greatly expanded with the addition of 68 γ transitions and 17 levels observed for the first time in the β decay. The information on the excited structure is completed by new γ transitions and states populated in the β−n decay of 133In. Improved delayed neutron emission probabilities are obtained both for 132In and 133In. Level lifetimes are measured via the advanced time-delayed βγγ(t) fast-timing method. An interpretation of the level structure is given based on the experimental findings and the particle-hole configurations arising from core excitations both from the N = 82 and Z = 50 shells, leading to positive- and negative-parity particle-hole multiplets. The experimental information provides new data to challenge the theoretical description of 132Sn.
Original languageEnglish
Article number014328
Pages (from-to)1-18
Number of pages18
JournalPhysical Review C
Volume102
Issue number1
DOIs
Publication statusPublished - 29 Jul 2020

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