| Article | |
| Report number | arXiv:2110.13988 |
| Title | First β-decay spectroscopy of $^{135}$In and new $β$-decay branches of $^{134}$In |
| Related title | First β-decay spectroscopy of In135 and new β-decay branches of In134 |
| Author(s) |
Piersa-Siłkowska, M. (Warsaw U.) ; Korgul, A. (Warsaw U.) ; Benito, J. (Madrid U.) ; Fraile, L.M. (CERN ; Madrid U.) ; Adamska, E. (Warsaw U.) ; Andreyev, A.N. (York U., England) ; Álvarez-Rodríguez, R. (Madrid Polytechnic U., ETS Architecture) ; Barzakh, A.E. (Kurchatov Inst., Moscow) ; Benzoni, G. (INFN, Milan) ; Berry, T. (Surrey U.) ; Borge, M.J.G. (Madrid, Inst. Estructura Materia ; CERN) ; Carmona, M. (Madrid U.) ; Chrysalidis, K. (CERN) ; Correia, J.G. (CERN ; IST, Lisbon (main)) ; Costache, C. (Bucharest, IFIN-HH) ; Cubiss, J.G. (CERN ; York U., England) ; Day Goodacre, T. (CERN ; Manchester U.) ; De Witte, H. (Leuven U.) ; Fedorov, D.V. (Kurchatov Inst., Moscow) ; Fedosseev, V.N. (CERN) ; Fernández-Martínez, G. (Darmstadt, Tech. U.) ; Fijałkowska, A. (Warsaw U.) ; Fynbo, H. (Aarhus U.) ; Galaviz, D. (LIP) ; Galve, P. (Madrid U.) ; García-Díez, M. (Madrid U.) ; Greenlees, P.T. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Grzywacz, R. (Oak Ridge ; Tennessee U.) ; Harkness-Brennan, L.J. (Liverpool U.) ; Henrich, C. (Darmstadt, Tech. U.) ; Huyse, M. (Leuven U.) ; Ibáñez, P. (Madrid U.) ; Illana, A. (INFN, Legnaro ; Leuven U.) ; Janas, Z. (Warsaw U.) ; Johnston, K. (CERN) ; Jolie, J. (Cologne U.) ; Judson, D.S. (Liverpool U.) ; Karanyonchev, V. (Cologne U.) ; Kicińska-Habior, M. (Warsaw U.) ; Konki, J. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Koszuk, Ł. (Warsaw U.) ; Kurcewicz, J. (CERN) ; Lazarus, I. (Daresbury) ; Lică, R. (CERN ; Bucharest, IFIN-HH) ; López-Montes, A. (Madrid U.) ; Mach, H. (NCBJ, Warsaw) ; Madurga, M. (CERN ; Tennessee U.) ; Marroquín, I. (Madrid, Inst. Estructura Materia) ; Marsh, B. (CERN) ; Martínez, M.C. (Madrid U.) ; Mazzocchi, C. (Warsaw U.) ; Miernik, K. (Warsaw U.) ; Mihai, C. (Bucharest, IFIN-HH) ; Mărginean, N. (Bucharest, IFIN-HH) ; Mărginean, R. (Bucharest, IFIN-HH) ; Negret, A. (Bucharest, IFIN-HH) ; Nácher, E. (Valencia U., IFIC) ; Ojala, J. (Jyvaskyla U.) ; Olaizola, B. (Guelph U. ; TRIUMF ; CERN) ; Page, R.D. (Liverpool U.) ; Pakarinen, J. (Jyvaskyla U.) ; Pascu, S. (Bucharest, IFIN-HH) ; Paulauskas, S.V. (Tennessee U.) ; Perea, A. (Madrid, Inst. Estructura Materia) ; Pucknell, V. (Daresbury) ; Rahkila, P. (Jyvaskyla U. ; Helsinki Inst. of Phys.) ; Raison, C. (York U., England) ; Rapisarda, E. (CERN) ; Rezynkina, K. (Leuven U.) ; Rotaru, F. (Bucharest, IFIN-HH) ; Rothe, S. (CERN) ; Rykaczewski, K.P. (Oak Ridge) ; Régis, J.-M. (Cologne U.) ; Schomacker, K. (Cologne U.) ; Siłkowski, M. (Warsaw U.) ; Simpson, G. (LPSC, Grenoble) ; Sotty, C. (Bucharest, IFIN-HH ; Leuven U.) ; Stan, L. (Bucharest, IFIN-HH) ; Stănoiu, M. (Bucharest, IFIN-HH) ; Stryjczyk, M. (Warsaw U. ; Jyvaskyla U. ; Leuven U.) ; Sánchez-Parcerisa, D. (Madrid U.) ; Sánchez-Tembleque, V. (Madrid U.) ; Tengblad, O. (Madrid, Inst. Estructura Materia) ; Turturică, A. (Bucharest, IFIN-HH) ; Udías, J.M. (Madrid U.) ; Van Duppen, P. (Leuven U.) ; Vedia, V. (Madrid U.) ; Villa, A. (Madrid U.) ; Viñals, S. (Madrid, Inst. Estructura Materia) ; Wadsworth, R. (York U., England) ; Walters, W.B. (Maryland U., Dept. Chem.) ; Warr, N. (Cologne U.) ; Wilkins, S.G. (CERN) |
| Publication | 2021-10-26 |
| Imprint | 2021-10-26 |
| Number of pages | 19 |
| In: | Phys. Rev. C 104 (2021) 044328 |
| DOI | 10.1103/PhysRevC.104.044328 (publication) |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE |
| Abstract | The $\beta$ decay of the neutron-rich $^{134}$In and $^{135}$In was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number $Z=50$ above the $N=82$ shell. The $\beta$-delayed $\gamma$-ray spectroscopy measurement was performed at the ISOLDE facility at CERN, where indium isotopes were selectively laser-ionized and on-line mass separated. Three $\beta$-decay branches of $^{134}$In were established, two of which were observed for the first time. Population of neutron-unbound states decaying via $\gamma$ rays was identified in the two daughter nuclei of $^{134}$In, $^{134}$Sn and $^{133}$Sn, at excitation energies exceeding the neutron separation energy by 1 MeV. The $\beta$-delayed one- and two-neutron emission branching ratios of $^{134}$In were determined and compared with theoretical calculations. The $\beta$-delayed one-neutron decay was observed to be dominant $\beta$-decay branch of $^{134}$In even though the Gamow-Teller resonance is located substantially above the two-neutron separation energy of $^{134}$Sn. Transitions following the $\beta$ decay of $^{135}$In are reported for the first time, including $\gamma$ rays tentatively attributed to $^{135}$Sn. In total, six new levels were identified in $^{134}$Sn on the basis of the $\beta \gamma \gamma$ coincidences observed in the $^{134}$In and $^{135}$In $\beta$ decays. A transition that might be a candidate for deexciting the missing neutron single-particle $13/2^+$ state in $^{133}$Sn was observed in both $\beta$ decays and its assignment is discussed. Experimental level schemes of $^{134}$Sn and $^{135}$Sn are compared with shell-model predictions. Using the fast timing technique, half-lives of the $2^+$, $4^+$ and $6^+$ levels in $^{134}$Sn were determined. |
| Copyright/License | publication: © 2021-2024 authors (License: CC BY 4.0) preprint: (License: CC BY 4.0) |
Corresponding record in: Inspire
Record created 2021-10-29, last modified 2024-05-08
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