Laser induced atomic-molecular reaction of the rare-earth ytterbium and europium metals with HCl molecules

In the crossed atomic and molecular beams the chemical reactions of ytterbium and europium atoms with HCl molecules were observed at the laser excitation of atoms. At the excitation of ytterbium metastable states³P0and³P2an indicated amount of the reaction product was increased by a factor of three as compared to the case of³P1state excitation.