Simulation of the hyperfine-resolved Zeeman spectrum of Eu atoms in a magnetic trap - art. no. 033412

We present a simulation of the laser absorption spectra of Eu atoms in the rr S-8(7/2)-y(8) P-7/2 band at 462.7 nm measured previously in a buffer-gas -loaded magnetic trap [J. Kim et al., Phys. Rev. Lett. 78, 3665 (1997)]. Th e simulations of the hyperfine-resolved Zeeman spectra are based on exact m agnetic eigenproperties of the states involved, and yield a complete assign ment of all the features observed. This reveals that apart from the M-J = 7 /2 state and its hyperfine substrates. the M-J= 5/2 and 3/2 states are also trapped at B-max = 0.52 T and a temperature of about 250 mK.