Hyperfine, rotational, and Zeeman structure of the lowest vibrational levels of the Rb 87 2 (1) 3 Σ g + state

摘要: We present the results of an experimental and theoretical study electronically excited (1){sup 3{Sigma}}{sub g}{sup +} state {sup 87}Rb{sub 2} molecules. The vibrational energies are measured for deeply bound states from bottom up to v{sup '}=15 using laser spectroscopy ultracold Rb{sub Feshbach spectrum each is dominated by a 47-GHz splitting into 0{sub -} 1{sub g} components caused mainly strong second-order spin-orbit interaction. Our fully resolves rotational, hyperfine, Zeeman structure spectrum. able describe this first order simplified effective Hamiltonian.