Precision measurements with LPCTrap at GANIL

Abstract

The experimental achievements and the results obtained so far with the LPCTrap device installed at GANIL are presented. The apparatus is dedicated to the study of the weak interaction at low energy by means of precise measurements of the BETA-NU angular correlation parameter in nuclear BETA decays. So far, the data collected with three isotopes have enabled to determine, for the first time, the charge state distributions of the recoiling ions, induced by shakeoff process. The analysis is presently refined to deduce the correlation parameters, with the potential of improving both the constraint deduced at low energy on exotic tensor currents (6He1+) and the precision on the V u d element of the quark-mixing matrix (35Ar1+ and 19Ne1+) deduced from the mirror transitions dataset.

arXiv comment6th International Conference on Trapped Charged Particles and Fundamental Physics (TCP 2014), Takamatsu, Japan, December 2014, to be published in Hyperfine Interactions

References in corpus (10)

• Superallowed 0+ to 0+ nuclear beta decays: A new survey with precision tests of the conserved vector current hypothesis and the standard model
• Tests of the standard electroweak model in beta decay
• Scalar interaction limits from the beta-neutrino correlation of trapped radioactive atoms
• Determination of |Vud| from nuclear mirror transitions
• Ft values of the T = 1/2 mirror beta transitions
• Measurement of the Beta-Neutrino Correlation of Sodium-21 using Shakeoff Electrons
• Paul trapping of radioactive 6He+ions and direct observation of their beta-decay
• Precision measurements in nuclear β-decay with LPCTrap
• Measurement of the half-life of the T=$\frac{1}{2}$ mirror decay of ${}^{19}$Ne and its implication on physics beyond the standard model
• Electron shakeoff following the ?+ decay of trapped 35Ar+ ions

Cited by in corpus (11)

• New physics searches in nuclear and neutron $\beta$ decay
• High precision analytical description of the allowed $\beta$ spectrum shape
• Precise predictions and new insights for atomic ionisation from the Migdal effect
• $\mathcal{F}t$ values of the mirror $\beta$ transitions and the weak magnetism induced current in allowed nuclear $\beta$ decay
• Electron shakeoff following the \b{eta}+ decay of 19Ne+ and 35Ar+ trapped ions
• Analytical model of an ion cloud cooled by collisions in a Paul trap
• A decay microscope for trapped neon isotopes
• Influence of the recoil-order and radiative correction on the beta decay correlation coefficients in mirror decays
• The open LPC Paul trap for precision measurements in beta decay
• Geometry optimisation of a transparent axisymmetric ion trap for the MORA project
• Comparison of the Migdal transition probabilities in electron-atom inelastic cross sections