| Article | |
| Report number | arXiv:1906.01538 |
| Title | $Q_{\textrm{EC}}$-value determination for $^{21}$Na$\rightarrow^{21}$Ne and $^{23}$Mg$\rightarrow^{23}$Na mirror-nuclei decays using high-precision mass spectrometry with ISOLTRAP at ISOLDE/CERN |
| Author(s) | Karthein, J. (CERN ; Heidelberg, Max Planck Inst.) ; Atanasov, D. (Heidelberg, Max Planck Inst.) ; Blaum, K. (Heidelberg, Max Planck Inst.) ; Breitenfeldt, M. (CERN) ; Bondar, V. (Leuven U.) ; George, Sebastian ; Hayen, L. (Leuven U.) ; Lunney, D. (CSNSM, Orsay) ; Manea, V. (CERN) ; Mougeot, M. (CSNSM, Orsay) ; Neidherr, D. (Darmstadt, GSI) ; Schweikhard, L. (Greifswald U.) ; Severijns, N. (Leuven U.) ; Welker, A. (CERN ; Dresden, Tech. U.) ; Wienholtz, F. (CERN ; Greifswald U.) ; Wolf, R.N. (Heidelberg, Max Planck Inst.) ; Zuber, K. (Dresden, Tech. U.) |
| Publication | 2019-07-16 |
| Imprint | 2019-06-04 |
| Number of pages | 7 |
| Note | Published by Physical Review C. 8 pages, 6 figures, 2 tables |
| In: | Phys. Rev. C 100 (2019) pp.015502 |
| DOI | 10.1103/PhysRevC.100.015502 (publication) 10.1103/PhysRevC.101.049901 (erratum) |
| Subject category | nucl-ex ; Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN ISOLDE ; ISOLTRAP |
| Abstract | We report on high-precision $Q_{\textrm{EC}}$ values of the $^{21}$Na$\rightarrow^{21}$Ne and $^{23}$Mg$\rightarrow^{23}$Na mirror $\beta$-transitions from mass measurements with ISOLTRAP at ISOLDE/CERN. A precision of $\delta m/m = 9 \cdot 10^{-10}$ and $\delta m/m = 1.5 \cdot 10^{-9}$ was reached for the masses of $^{21}$Na and $^{23}$Mg, respectively. We reduce the uncertainty of the $Q_{\textrm{EC}}$ values by a factor five, making them the most precise experimental input data for the calculation of the corrected $\mathcal{F} t$-value of these mixed Fermi/Gamow-Teller transitions. For the $^{21}$Na$\rightarrow^{21}$Ne $Q_{\textrm{EC}}$ value, a $2.3 \sigma$ deviation from the literature $Q_{\textrm{EC}}$-value was found. |
| Copyright/License | Publication: © 2019-2024 authors preprint: (License: arXiv nonexclusive-distrib 1.0) |
Corresponding record in: Inspire
Record creato 2019-06-20, modificato l'ultima volta il 2024-05-08
