Detailed structure of 131Sn populated in the 𝛽 decay of isomerically purified 131In states
Benito, J., Fraile, L. M., Korgul, A., Piersa-Siłkowska, M., Jaries, A., Stryjczyk, M., Adamska, E., Álvarez-Rodríguez, R., Andreyev, A. N., Barzakh, A. E., Benzoni, G., Berry, T., Borge, M. J. G., Carmona, M., Chrysalidis, K., Costache, C., Cubiss, J. G., Day Goodacre, T., De Witte, H., Eronen, T., Fedorov, D. V., Fedosseev, V. N., Fernández-Martínez, G., Fijałkowska, A., Fila, M., Fynbo, H., Galaviz, D., Galve, P., García-Díez, M., Ge, Z., Greenlees, P. T., Grzywacz, R., Henrich, C., Huyse, M., Ibáñez, P., Illana, A., Janas, Z., Jolie, J., Judson, D. S., Kankainen, A., Karayonchev, V., Kicińska-Habior, M., Konki, J., Kurcewicz, J., Lazarus, I., Lică, R., López-Montes, A., Lund, M., Mach, H., Madurga, M., Mărginean, N., Mărginean, R., Marroquín, I., Marsh, B. A., Martínez, M. C., Mazzocchi, C., Miernik, K., Mihai, C., Mihai, R. E., Mougeot, M., Murias, J. R., Nácher, E., Negret, A., Olaizola, B., Page, R. D., Paulauskas, S. V., Pascu, S., Perea, A., Pucknell, V., Raggio, A., Rahkila, P., Raison, C., Rapisarda, E., Régis, J.-M., Rezynkina, K., Rotaru, F., Rothe, S., Ruotsalainen, J., Sánchez-Parcerisa, D., Sánchez-Tembleque, V., Schomacker, K., Simpson, G. S., Sotty, Ch., Stan, L., Stănoiu, M., Tengblad, O., Turturica, A., Udías, J. M., Van Duppen, P., Vedia, V., Villa-Abaunza, A., Viñals, S., Wadsworth, R., Walters, W. B., Warr, N., IDS and IGISOL Collaboration. (2024). Detailed structure of 131Sn populated in the 𝛽 decay of isomerically purified 131In states. Physical Review C, 110(1), Article 014328. https://doi.org/10.1103/PhysRevC.110.014328
Julkaistu sarjassa
Physical Review CPäivämäärä
2024Tekijänoikeudet
© 2024 the Authors
The excited structure of the single-hole nucleus 131Sn populated by the 𝛽− decay of 131In was investigated in detail at the ISOLDE facility at CERN. This new experiment took advantage of isomeric purification capabilities provided by resonant ionization, making it possible to independently study the decay of each isomer for the first time. The position of the first-excited 𝜈ℎ11/2 neutron-hole state was confirmed via an independent mass spectroscopy experiment performed at the Ion Guide Isotope Separator On-Line facility at the University of Jyväskylä. The level scheme of 131Sn was notably expanded with the addition of 31 new 𝛾-ray transitions and 22 new excited levels. The 𝛾-emitting excited levels above the neutron separation energy in 131Sn were investigated, revealing a large number of states, which in some cases decay by transitions to other neutron-unbound states. Our analysis showed the dependence between the population of these states in 131Sn and the 𝛽-decaying 131In state feeding them. Profiting from the isomer selectivity, it was possible to estimate the direct 𝛽 feeding to the 3/2+ ground and 11/2− isomeric states, disentangling the contributions from the three indium parent states. This made possible to resolve the discrepancies in log𝑓𝑡 for first-forbidden transitions observed in previous studies, and to determine the 𝛽-delayed neutron decay probability (𝑃𝑛) values of each indium isomers independently. The first measurement of subnanosecond lifetimes in 131Sn was performed in this work. A short 𝑇1/2=18(4)−ps value was measured for the 1/2+ neutron single-hole 332-keV state, which indicates an enhanced 𝑙-forbidden 𝑀1 behavior for the 𝜈3𝑠−11/2→𝜈3𝑑−13/2 transition. The measured half-lives of high-energy states populated in the 𝛽 decay of the (21/2+) second isomeric state (131𝑚2 In) provided valuable information on transition rates, supporting the interpretation of these levels as core-excited states analogous to those observed in the doubly-magic 132Sn.
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Julkaisija
American Physical SocietyISSN Hae Julkaisufoorumista
2469-9985Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/233221518
Metadata
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Rahoittaja(t)
Euroopan komissio; Suomen AkatemiaRahoitusohjelmat(t)
Akatemiahanke, SA; Akatemiatutkija, SA; Akatemiatutkijan tutkimuskulut, SA![](/themes/JYX2/images/funders/erc_logo_thumb.jpg)
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The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
We acknowledge the support of the ISOLDE Collaboration and the ISOLDE technical teams and by the European Union Horizon 2020 research and innovation program under Grants No. 654002, No. 771036 (ERC CoG MAIDEN), No. 861198–LISA–H2020-MSCA-ITN-2019, and No. 101057511 (EURO-LABS). This work was partially funded by Spanish MCIN/AEI/10.13039/501100011033 under Grants No. FPA2015-64969-P, No. FPA2015-65035-P, No. FPA2017-87568-P, No. RTI2018-098868-B-I00, No. PID2021-126998OB-I00, No. PID2021-122711NB-C21, No. PID2022-140162NB-I00, and No. PID2022-136992NB-I00; by “ERDF A way of making Europe”; by Grupo de Fisica Nuclear (910059) at Universidad Complutense de Madrid; by the Polish National Science Center under Contracts No. UMO-2015/18/E/ST2/00217, No. UMO-2015/18/M/ST2/00523, No. UMO-2019/33/N/ST2/03023, and No.2020/39/B/ST2/02346; by the Polish Ministry of Science and Higher Education under Contract No. 2021/WK/07; by the Academy of Finland Projects No.295207, No. 306980, No. 327629, No. 354589, and No. 354968; by the Portuguese FCT via CERN/FIS-NUC/0004/2015 project; by the German BMBF under Contracts No. 05P18PKCIA and No. 05P21PKCI1; by the Romanian IFA Grant CERN/ISOLDE and Nucleu Project No. PN 23 21 01 02; and by STFC Grants No. ST/P004598/1 and No. ST/V001027/1. Support by the U.K. Science and Technology Facilities Council, by the Research Foundation Flanders (FWO, Belgium), by the Excellence of Science program (EOS, FWO-FNRS, Belgium), and by the GOA/2015/010 (BOF KU Leuven) is also acknowledged. J.B. also acknowledges the support from the Margarita Salas Fellowship, CT31/21, at the Complutense University of Madrid funded by the Spanish MIU and European Union-Next-Generation funds. J.R. acknowledges financial support from the Vilho, Yrjö and Kalle Väisälä Foundation.![showless](/themes/JYX2//images/showless.png)
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