Abstract
Rotational levels of molecular free radicals can be tuned to degeneracy by using laboratory-scale magnetic fields. Because of their intrinsically narrow width, these level crossings of opposite-parity states have been proposed for use in the study of parity-violating interactions and other applications. We experimentally study a typical manifestation of this system using BaF138. Using a Stark-mixing method for detection, we demonstrate level-crossing signals with spectral width as small as 6 kHz. We use our data to verify the predicted line shapes, transition dipole moments, and Stark shifts and to precisely determine molecular magnetic g factors. Our results constitute an initial proof of concept for use of this system to study nuclear spin-dependent parity-violating effects.
Original language | English |
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Article number | 163002 |
Pages (from-to) | 1-5 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 112 |
Issue number | 16 |
DOIs | |
Publication status | Published - 25 Apr 2014 |
Externally published | Yes |
Keywords
- PARITY NONCONSERVATION
- HYPERFINE-STRUCTURE
- BAF
- MOLECULES
- CONSTANTS
- SPECTRUM
- MOMENTS
- DIPOLE