Angular Dependence of the Vibrational and Rotational Excitations Seen in Photoelectron Spectroscopy
Abstract
The vibrational and rotational excitations seen in photoelectron spectroscopy are shown to have intensities proportional to k2(mM)2[α+(β- α)2Θ], where k--> is the wave vector of the incident radiation, m is the mass of the excited nucleus, M is the total mass of the molecule, and Θ is the angle between the wave vector of the ejected electron and the polarization direction of the radiation. The α and β are absolute squares of the nuclear transition matrix elements. This angular dependence is similar in form to the dependence of the photoelectric cross section which is α+(β-α)2Θ, where α and β are the absolute squares of the transition matrix elements for the photoejection of an electron.
- Publication:
-
Physical Review A
- Pub Date:
- August 1971
- DOI:
- 10.1103/PhysRevA.4.457
- Bibcode:
- 1971PhRvA...4..457T