Recent developments in precision mass spectrometry of radioactive isotopes (RI) and some
selected related physics subjects are reviewed. In the last decades, besides conventional …

A new critical survey of all half-life, decay-energy, and branching-ratio measurements
related to 23 superallowed 0+→ 0+ β decays is presented. Included are 222 individual …

Ion traps offer a way to determine nuclear binding energies through atomic mass
measurements with a high accuracy and they are routinely used to provide isotopically or …

Radiative corrections are essential for an accurate determination of V ud from superallowed
β decays. In view of recent progress in the single-nucleon sector, the uncertainty is …

At present, the best value for Vud, 0.97420 (21), comes from superallowed 0+-to-0+ nuclear
beta transitions, of which fourteen have now been measured with high precision. The current …

Nuclear beta decays between (J^ pi, T)=(0^+, 1) analog states yield the best value for the
Vud element of the Cabibbo-Kobayashi-Maskawa matrix. Current world data establish the …

Background: The precise determination of the F t value in T= 1/2 mixed mirror decays is an
important avenue for testing the standard model of the electroweak interaction through the …

We report the first direct measurement of the transition energy Q EC of the Na 21 mixed
Fermi–Gamow-Teller decay. This is the first of the T= 1/2 mirror nuclei decays used for the …

Precision measurements of superallowed Fermi β-decay transitions, particularly for the
lightest superallowed emitters C 10 and O 14, set stringent limits on possible scalar current …

We performed Penning trap mass measurements for Zn 61 at the National Superconducting
Cyclotron Laboratory and NuShellX calculations of the Zn 61 and Ga 62 structure using the …