Abstract
A single trapped Ra + (Z = 88) ion provides a very promising route towards a most precise measurement of Atomic Parity Violation (APV), since APV effects grow faster than Z 3. This experiment promises the best determination of the electroweak coupling constant at the lowest accessible energies. Such a measurement provides a sensitive test of the Standard Model in particle physics. At the present stage of the experiment, we focus on trapping and laser cooling stable Ba + ions as a precursor for radioactive Ra + . Online laser spectroscopy of the isotopes 209 − 214Ra + in a linear Paul trap has provided information on transition wavelengths, fine and hyperfine structures and excited state lifetimes as test of atomic structure calculations. Additionaly, a single trapped Ra + ion could function as a very stable clock.
Original language | English |
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Pages (from-to) | 157-162 |
Number of pages | 6 |
Journal | Hyperfine Interactions |
Volume | 214 |
Issue number | 1 |
DOIs | |
Publication status | Published - 31 Mar 2013 |
Externally published | Yes |
Keywords
- Atomic Parity Violation
- Radium
- Laser Spectroscopy
- Hyperfine Structure
- Atomic Clock