State-to-state cross sections and anisotropy parameters for the excitation of the (v= 0,1,2,3;N= 2) states of by electron impact

Abstract

The distorted-wave approximation combined with the Born-Oppenheimer approximation is applied to calculate rovibrationally resolved state-to-state differential and final-statespecific integral cross sections associated with the Xtransitions of H 2 , as well as the anisotropy parameters for the excited state. The comparison of our final-state-specific cross sections with the available recent laser-induced fluorescence experimental data in the 12-22 eV range is very encouraging.

Energies, transition probabilities, predissociation rates, and lifetimes of the ${{\rm{H}}}_{2}$, HD, and ${{\rm{D}}}_{2}$ $c{}^{3}{{\rm{\Pi }}}_{u}^{-}$ state

“…Other experimental investigations (Mason and Newell 1986, Ottinger and Rox 1991, Ajello and Shemansky 1993, Furlong and Newell 1995, Harries et al 2004 measured only the relative values of cross sections or excitation functions and require normalizations to certain standards to obtain absolute values. Theoretical calculations include those by Chung et al (1975), Lee et al (1993Lee et al ( , 1996, Stibbe and Tennyson (1998), Trevisan and Tennyson (2002), Laricchiuta et al (2004), da Costa et al (2005, and Taveira et al (2006).…”