Multichannel excitation cross sections of sodium atoms at slow collisions with hydrogen atoms

作者：Vlasov D V^*; Barklem P S; Belyaev A K

来源：Optics and Spectroscopy, 2011, 110(3): 321-327.

DOI：10.1134/S0030400X1103026X

Excitation cross sections at slow collisions of hydrogen and sodium atoms are calculated based on two sets of quantum-chemical data. The results of calculations permit one to conclude that, upon the excitation of the sodium atom from the ground state in the region of near-threshold energies, the cross sections are highly sensitive to matrix nonadiabaticity elements. In addition, the matrix nonadiabaticity element was varied for the transition 3s -> 3p of the sodium atom at fixed collision energy near the reaction threshold. It was found that the variation leads to a significant change in the excitation cross section 3s -> 3p, and the range of the energetic dependence of this cross section was determined.

• 出版日期2011-3