Anticrossing spectroscopy of the n=6,7,8 1,3D states in 3He
Abstract
The anticrossing spectra of the n=6,7,8 1D-3D states of 3He have been observed. From these measurements precise values of the electrostatic singlet-triplet separation of these states have been obtained and are found to differ systematically from the accepted values of the 4He singlet-triplet separation by approximately 34 MHz. We have investigated mass-dependent contributions to both the energy-level structure and the magnetic-tuning characteristics of the states of interest. We have found no mechanism that can explain such a large difference in the electrostatic-energy separation of the singlet and triplet D states between the two helium isotopes.
- Publication:
-
Physical Review A
- Pub Date:
- February 1982
- DOI:
- 10.1103/PhysRevA.25.869
- Bibcode:
- 1982PhRvA..25..869P