Standard Model tests with trapped radioactive atoms

Abstract

We review the use of laser cooling and trapping for Standard Model tests, focusing on trapping of radioactive isotopes. Experiments with neutral atoms trapped with modern laser cooling techniques are testing several basic predictions of electroweak unification. For nuclear $\beta$ decay, demonstrated trap techniques include neutrino momentum measurements from beta-recoil coincidences, along with methods to produce highly polarized samples. These techniques have set the best general constraints on non-Standard Model scalar interactions in the first generation of particles. They also have the promise to test whether parity symmetry is maximally violated, to search for tensor interactions, and to search for new sources of time reversal violation. There are also possibilites for exotic particle searches. Measurements of the strength of the weak neutral current can be assisted by precision atomic experiments using traps of small numbers of radioactive atoms, and sensitivity to possible time-reversal violating electric dipole moments can be improved.

45 pages, 17 figures, v3 includes clarifying referee comments, especially in beta decay section, and updated figures

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Cited by in corpus (21)

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• Laser Spectroscopy for the Study of Exotic Nuclei
• The Weak Neutral Current
• Standard Model tests with trapped radioactive atoms
• Symmetry violations in nuclear and neutron $\beta$ decay
• Symmetry Energy Constraints from Giant Resonances: A Theoretical Overview
• The observation of vibrating pear shapes in radon nuclei: update
• Precision measurement of the $\beta$-asymmetry in spin-polarized ${}^{37}\mathrm{K}$ decay
• Electron and recoil ion momentum imaging with a magneto-optically trapped target
• Preliminary studies for anapole moment measurements in rubidium and francium
• Commissioning of the Francium Trapping Facility at TRIUMF
• Limits on tensor type weak currents from nuclear and neutron $\beta$~decays
• First detection and energy measurement of recoil ions following beta decay in a Penning trap with the WITCH experiment
• Design of a Unique Open-Geometry Cylindrical Penning Trap
• Sensitivity test of a blue-detuned dipole trap designed for parity non-conservation measurements in Fr
• Charge-state distribution of Li ions from the $\beta$ decay of laser-trapped ${}^6$He atoms
• A decay microscope for trapped neon isotopes
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• Imaging recoil ions from optical collisions between ultracold, metastable neon isotopes
• A Facility for Production and Laser Cooling of Cesium Isotopes and Isomers
• Helicity and nuclear $\beta$ decay correlations