RT Journal Article
T1 Isospin mixing in                    <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">                      <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>                        </mml:mrow>                      </mml:mmultiscripts>                    </mml:math>                    reexamined via total absorption spectroscopy
A1 Parra, S.
A1 Nácher, E.
A1 Rubio, B.
A1 Gelletly, W.
A1 Briz Monago, José Antonio
A1 Agramunt, J.
A1 Algora, A.
A1 Aguilera, P.
A1 Berry, T.
A1 Borge, M. J. G.
A1 Carmona Gallardo, M.
A1 Fraile Prieto, Luis Mario
A1 Illana Sisón, Andrés
A1 Ganioglu, E.
A1 Guadilla, V.
A1 Köster, U.
A1 Lică, R.
A1 Marroquín, I.
A1 Molina, F.
A1 Morales, A. B.
A1 Singh, B. S. Nara
A1 Orce, J. N.
A1 Orrigo, S. E. A.
A1 Perea, A.
A1 Romero-Barrientos, J.
A1 Sotty, C.
A1 Tengblad, O.
A1 Taín, J. L.
A1 Tolosa Delgado, A.
A1 Vaquero, V.
A1 Vedia, V.
AB 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.
PB American Physical Society
SN 2469-9985
YR 2025
FD 2025-12-24
LK https://hdl.handle.net/20.500.14352/130898
UL https://hdl.handle.net/20.500.14352/130898
LA eng
NO 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.
NO CIPROM/2021/06.CIPROM/2022/9.910059.ST/P005314ST/Y000382/1
NO Ministerio de Ciencia e Innovación (España)
NO Agencia Estatal de Investigación
NO European Comission
NO Generalitat Valenciana
NO Universidad Complutense
NO Science and Technology Facilities Council (UK)
NO Institutul de Fizica Atomica (Rumanía)
NO Africa’s Department of Science, Technology and Innovation
NO National Research Foundation (Australia)
DS Docta Complutense
RD 19 mar 2026