The frequencies of the different Zeeman components of the neutral calcium metastable (4s, 4p) <sup>3</sup>P<sub>1</sub> and <sup>3</sup>P<sub>2</sub> levels were measured in a highly homogeneous magnetic field of the order of 0.4 T by a double-resonance technique in an atomic metastable beam. The Landé factor of the two levels was determined as g<sub>J</sub>(<sup>3</sup>P<sub>1</sub>)= 1.5010829(28) and g<sub>J</sub>(<sup>3</sup>P<sub>2</sub>)=1.5011308(75).
© 1998 Optical Society of America
N. Beverini, E. Maccioni, and F. Strumia, "g J Factor of neutral calcium 3P metastable levels," J. Opt. Soc. Am. B 15, 2206-2209 (1998)