Probing the nuclide 180W for neutrinoless double-electron capture exploration

Abstract

The mass difference of the nuclides 180W and 180Hf has been measured with the Penning-trap mass spectrometer SHIPTRAP to investigate 180W as a possible candidate for the search for neutrinoless doubleelectron capture. The Q-value was measured to 143.20(27)keV. This value in combination with the calculations of the atomic electron wave functions and other parameters results in a half-life of the 0+ \rightarrow 0+ ground-state to ground-state double-electron capture transition of approximately 5\cdot10E27 years/<m_ee[eV]>^2.

References in corpus (3)

• The Ramsey method in high-precision mass spectrometry with Penning traps: Experimental results
• Separated Oscillatory Fields for High-Precision Penning Trap Mass Spectrometry
• Resonance enhancement of neutrinoless double electron capture

Cited by in corpus (9)

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• Neutrinoless double beta decay and neutrino mass
• Nuclear matrix elements for neutrinoless double-beta decay and double-electron capture
• Neutrinoless Double-Electron Capture
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• Calculation of nuclear matrix elements in neutrinoless double electron capture
• Evaluation of the resonance enhancement effect in neutrinoless double-electron capture in 152Gd, 164Er and 180W atoms
• New Limits on Double Electron Capture of ${}^{40}$Ca and ${}^{180}$W
• Stimulated transitions in resonant atom Majorana mixing