Laser spectroscopy of trapped short-lived Ra + ions

• Published in: Physical review. A, Atomic, molecular, and optical physics Vol. 82; no. 1
• Main Authors: Versolato, O. O., Giri, G. S., Wansbeek, L. W., van den Berg, J. E., van der Hoek, D. J., Jungmann, K., Kruithof, W. L., Onderwater, C. J. G., Sahoo, B. K., Santra, B., Shidling, P. D., Timmermans, R. G. E., Willmann, L., Wilschut, H. W.
• Format: Journal Article
• Language: English
• Published: United States 07-07-2010
• Subjects: ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; ATOMIC AND MOLECULAR PHYSICS; ATOMS; BENCHMARKS; BETA DECAY RADIOISOTOPES; CHARGED PARTICLES; D STATES; ELECTRON CAPTURE RADIOISOTOPES; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY NUCLEI; HYPERFINE STRUCTURE; INTERNAL CONVERSION RADIOISOTOPES; INVARIANCE PRINCIPLES; IONS; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LASER SPECTROSCOPY; LIFETIME; MILLISECONDS LIVING RADIOISOTOPES; MINUTES LIVING RADIOISOTOPES; NUCLEI; P INVARIANCE; P STATES; PARITY; PARTICLE PROPERTIES; RADIOISOTOPES; RADIUM 212; RADIUM 213; RADIUM 214; RADIUM IONS; RADIUM ISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTRAL SHIFT; SPECTROSCOPY; TRAPPING
• ISSN: 1050-2947; 1094-1622
• DOI: 10.1103/PhysRevA.82.010501

As an important step toward an atomic parity violation experiment in one single trapped Ra{sup +} ion, laser spectroscopy on short-lived {sup 212,213,214}Ra{sup +} ions was conducted. The isotope shift of the 6 {sup 2}D{sub 3/2}-7 {sup 2}P{sub 1/2} and 6 {sup 2}D{sub 3/2}-7 {sup 2}P{sub 3/2} transitions and the hyperfine structure constants of the 7 {sup 2}P{sub 1/2} and 6 {sup 2}D{sub 3/2} states in {sup 213}Ra{sup +} were measured, which provides a benchmark for the required atomic theory. A lower limit of 232(4) ms for 6 {sup 2}D{sub 5/2} state lifetime was determined.