Measurement of the 1s2s1S0-1s2p3P1 interval in heliumlike nitrogen
Abstract
For a large range of Z the 1s2s1S0-1s2p3P1 interval in heliumlike ions lies in a wavelength region accessible by infrared lasers. Measurements of this interval will enable exceptionally sensitive tests of calculations of relativistic corrections and QED effects (Lamb shifts) in two-electron ions. This Letter describes a precision measurement of this interval in N5+ using a fast ion beam and a CO2 laser. Our result is compared with recent relativistic and QED calculations.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 1995
- DOI:
- 10.1103/PhysRevLett.75.3637
- Bibcode:
- 1995PhRvL..75.3637M
- Keywords:
-
- 31.30.Jv;
- 12.20.Fv;
- 32.30.Bv;
- 42.62.Fi;
- Relativistic and quantum electrodynamic effects in atoms and molecules;
- Experimental tests;
- Radio-frequency microwave and infrared spectra;
- Laser spectroscopy