THE HYPERFINE SPECTRUM OF LIF

The molecular beam electric resonance technique has been used to examine the hyperfine spectrum of 7Li19F in vibrational states v = 0-4 and rotational states J = 1-6, in addition to a few 6Li19F lines. With the low electric fields used, the spectrum consists of many overlapping lines which have been deconvoluted by fitting the actual Rabi lineshape. The fitting process includes corrections for the small residual Stark shifts in the frequencies, yielding a precision on the order of a few hertz. By fitting the spectrum, new values have been obtained for the nuclear electric quadrupole and magnetic hyperfine parameters, including their dependence on vibrational and rotational state. © 1992.