QEC-value determination for 21Na→21Ne and 23Mg→23Na mirror-nuclei decays using 
high-precision mass spectrometry with ISOLTRAP at ISOLDE/CERN.

Karthein, Jonas; Atanasov, Dinko; Blaum, Klaus; Breitenfeldt, Martin; Bondar, Vira; George, Sebastian; Hayen, Leendert; Lunney, David; Manea, Vladimir; Mougeot, Maxime; Neidherr, Dennis; Schweikhard, Lutz; Severijns, Nathal; Welker, Andree; Wienholtz, Frank; Wolf, Robert; Zuber, Kai

doi:10.1103/PhysRevC.100.015502

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学術論文

QEC-value determination for ²¹Na→²¹Ne and ²³Mg→²³Na mirror-nuclei decays using high-precision mass spectrometry with ISOLTRAP at ISOLDE/CERN.

MPS-Authors

/persons/resource/persons192353

Karthein, Jonas
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
CERN, Route de Meyrin, 1211 Genève, Switzerland;

/persons/resource/persons104736

Atanasov, Dinko
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30312

Blaum, Klaus
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons30508

George, Sebastian
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

/persons/resource/persons103130

Wolf, Robert
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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1906.01538.pdf
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引用

Karthein, J., Atanasov, D., Blaum, K., Breitenfeldt, M., Bondar, V., George, S., Hayen, L., Lunney, D., Manea, V., Mougeot, M., Neidherr, D., Schweikhard, L., Severijns, N., Welker, A., Wienholtz, F., Wolf, R., & Zuber, K. (2019). QEC-value determination for ²¹Na→²¹Ne and ²³Mg→²³Na mirror-nuclei decays using high-precision mass spectrometry with ISOLTRAP at ISOLDE/CERN. Physical Review C, 100:. doi:10.1103/PhysRevC.100.015502.

引用: https://hdl.handle.net/21.11116/0000-0004-4BBF-2

要旨

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.