RT Journal Article
T1 Structure of 128Sn selectively populated in the β decay of the 128In ground state
A1 Llanos Expósito, Marcos
A1 Benito García, Jaime
A1 Fraile Prieto, Luis Mario
A1 Illana Sisón, Andrés
A1 Briz Monago, José Antonio
A1 Encina Baranda, Nerea
A1 López Herraiz, Joaquín
A1 Rodríguez Murias, Javier
A1 Martínez Nouvilas, Víctor
A1 Sánchez Tembleque Verbo, Víctor
A1 Udías Moinelo, José Manuel
AB High-resolution γ -ray spectroscopy and fast-timing methods were employed to study the excited structure of 128Sn, populated via the β-decay chain of 128Cd → 128In → 128Sn. The experiment was performed by online mass separation at the ISOLDE facility at CERN, profiting from intense and pure Cd beams obtained by a temperature-controlled quartz transfer line combined with resonant laser ionization. An extended 128Sn level scheme populated in the β− decay of the low-spin 128In isomer was constructed, adding a total of 81 new γ -ray transitions and 30 new levels. Lifetimes of excited states were measured using time-delayed βγ (t) and γ γ (t) coincidences. The lifetime of the (4+) state was measured for the first time, making it possible to deduce the B(E2; 4+ → 2+) transition strength. The previously measured (5−) state was reassessed with improved statistics. Additionally, an upper limit for the lifetime of the state at 2378 keV was established. The derived reduced transition probabilities support a tentative spin-parity assignment of (4−) for this level. The experimental level scheme and transition probabilities are compared with available shell-model calculations.
PB American Physical Society (APS)
SN 2469-9985
YR 2025
FD 2025-06-10
LK https://hdl.handle.net/20.500.14352/122578
UL https://hdl.handle.net/20.500.14352/122578
LA eng
NO Llanos-Expósito, M., Benito, J., Fraile, L. M., Illana, A., Acosta, J., Algora, A., Andel, B., Andreyev, A. N., Antalic, S., Araszkiewicz, M., Bark, R. A., Bernerd, C., Bernier, N., Bhengu, B., Bittner, D., Borge, M. J. G., Briz, J. A., Chrysalidis, K., Cocolios, T. E., … IDS collaboration. (2025). Structure of Sn 128 selectively populated in the β decay of the In 128 ground state. Physical Review C, 111(6), 064310. https://doi.org/10.1103/PhysRevC.111.064310
NO Artículo firmado por 89 autores.
NO European Commission
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Agencia Estatal de Investigación (España)
NO National Recovery and Resilience Plan (Bulgaria)
NO Bulgarian National Science Fund
NO Universidad Complutense de Madrid
NO Comunitat Valenciana
NO Research Foundation Flanders (Bélgica)
NO Katholieke Universiteit te Leuven (Bélgica)
NO Polish National Science Center
NO Polish Ministry of Science and Higher Education
NO Federal Ministry of Education and Research (Alemania)
NO Academy of Finland
NO United Kingdom Science and Technology Facilities Council
NO Slovak Research and Development Agency
NO Institute of Atomic Physics (Rumanía)
DS Docta Complutense
RD 18 jul 2025