Landé factor and lifetime measurements for odd-parity levels of Cr I by time-resolved laser spectroscopy

The Lande g J factors of 35 levels, and the radiative lifetimes of 43 levels, of neutral chromium in the energy range 23 305.0026 to 53 782.78 cm−1 were measured by time-resolved laser-induced fluorescence and Zeeman quantum beat methods in laser-ablation plasma. Good agreements between the present results and the previous experimental values were achieved for both g J factors and lifetimes. The measured g J values are quite close to those calculated under the pure LS-coupling scheme. The lifetime values obtained are in the range 11.4 to 193 ns. To the best of our knowledge, 15 of the Lande factors and 17 of the lifetimes are reported for the first time.