First detection and energy measurement of recoil ions following beta decay in a Penning trap with the WITCH experiment

Abstract

The WITCH experiment (Weak Interaction Trap for CHarged particles) will search for exotic interactions by investigating the beta-neutrino angular correlation via the measurement of the recoil energy spectrum after beta decay. As a first step the recoil ions from the beta-minus decay of 124In stored in a Penning trap have been detected. The evidence for the detection of recoil ions is shown and the properties of the ion cloud that forms the radioactive source for the experiment in the Penning trap are presented.

9 pages, 6 figures (9 figure files), submitted to European Physical Journal A

References in corpus (7)

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• Tests of the standard electroweak model in beta decay
• Measurement of the Beta-Neutrino Correlation of Sodium-21 using Shakeoff Electrons
• Standard Model tests with trapped radioactive atoms
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Cited by in corpus (2)

• Measurement of the $\beta$-asymmetry parameter of ${}^{67}$Cu in search for tensor type currents in the weak interaction
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