2026-06-29T02:44:08Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/1308982026-01-24T00:58:47Zcom_20.500.14352_14col_20.500.14352_15
Isospin mixing in
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<mml:mmultiscripts>
<mml:mi>Ga</mml:mi>
<mml:mprescripts/>
<mml:none/>
<mml:mrow>
<mml:mn>64</mml:mn>
<mml:mo>,</mml:mo>
<mml:mn>66</mml:mn>
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reexamined via total absorption spectroscopy
Parra, S.
Nácher, E.
Rubio, B.
Gelletly, W.
Briz Monago, José Antonio
Agramunt, J.
Algora, A.
Aguilera, P.
Berry, T.
Borge, M. J. G.
Carmona Gallardo, M.
Fraile Prieto, Luis Mario
Illana Sisón, Andrés
Ganioglu, E.
Guadilla, V.
Köster, U.
Lică, R.
Marroquín, I.
Molina, F.
Morales, A. B.
Singh, B. S. Nara
Orce, J. N.
Orrigo, S. E. A.
Perea, A.
Romero-Barrientos, J.
Sotty, C.
Tengblad, O.
Taín, J. L.
Tolosa Delgado, A.
Vaquero, V.
Vedia, V.
New measurements of the ,B decay of 64Ga and 66Ga have been carried out using total absorption spectroscopy at CERN-ISOLDE. The purpose of the study was to determine whether systemic effects such as Pandemonium have affected previous measurements and also determine the degree of isospin mixing in these proton-rich nuclei. Our results show that the ,B strength distribution of 64Ga was previously underestimated, while that of 66Ga agrees well with previous high-resolution measurements. The results allowed us to determine the amount of isospin mixing in the 0+ -> 0+ transitions to the ground states of the daughter nuclei. From the extracted log ft values, we determined the isospin mixing parameter a for the two cases. They were found to be consistent with values for similar transitions in other nuclei. 64Ga exhibits the largest amount of isospin mixing in such nuclei. These findings improve our understanding of beta decay and have implications for nuclear structure models and medical applications of 66Ga in PET imaging.
2026-01-23T17:33:44Z
2026-01-23T17:33:44Z
2026-01-23T17:33:44Z
2025-12-24
journal article
https://hdl.handle.net/20.500.14352/130898
2469-9985
10.1103/14qx-4jh6
2469-9993
eng
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-138297NB-C21/ES/ESTRUCTURA NUCLEAR, ASTROFISICA Y TRANSFERENCIA DE CONOCIMIENTO IFIC/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-140162NB-I00/ES/ESTUDIOS EXPERIMENTALES DE NUCLEOS EXOTICOS/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-098868-B-I00/ES/CENTELLEADORES RAPIDOS PARA ESTRUCTURA NUCLEAR Y APLICACIONES/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-126998OB-I00/ES/ESTRUCTURA NUCLEAR Y APLICACIONES CON CENTELLEADORES RAPIDOS/
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104714GB-C21/ES/ESTRUCTURA NUCLEAR, ASTROFISICA Y APLICACIONES - IFIC/
PN 23 21 01 02
info:eu-repo/grantAgreement/EC/H2020/654002/EU
Parra, S., et al. «Isospin Mixing in Ga 64 , 66 Reexamined via Total Absorption Spectroscopy». Physical Review C, vol. 112, n.o 6, diciembre de 2025, p. 064328. https://doi.org/10.1103/14qx-4jh6.
http://creativecommons.org/licenses/by/4.0/
open access
Attribution 4.0 International
American Physical Society