Radiative association of LiH(X(1)Sigma(+)) from electronically excited lithium atoms

Full quantum calculations are carried out for the collisional processes involving H atoms in their ground electronic state and electronically excited lithium atoms, Li(1s(2)2p). The channels that are being considered are those leading to the formation of bound rotovibrational states of LiH(X (1) Sigma(+)). The effects of both the specific features of the involved electronic potential-energy curves and of the transition moments coupling bound and continuum states during the process are studied in relation to the low-energy behavior of the corresponding cross sections. The role of the multitude of open channel resonances on the final rate constants is also analyzed and discussed over a broad range of bath temperatures.