Abstract
Photoionization is the process by which a photon of electromagnetic radiation is absorbed by a quantum system followed by the ejection of an electron. Such a transition from a well-defined initial state of the atom/molecule to various continuum states provides an excellent probe of atomic/molecular structure as well as a test for various theoretical models. Although satisfactmy results for photoionization parameters such as cross section, σ(ω), and photoelectron angular distribution asymmetry parameter, β(ω), are frequently obtained within the one-electron approximation, these parameters are often complicated by the presence of electron correlation. Photoionization phenomena which are outside the single-particle model include: 1. Interchannel coupling (where two distinct continuum channels interac) 2. Autoionization (resonances appearing in the photoionization cross section because of the degeneracy of bound-excited states with continuum photoionization channels) 3. Photoionization with excitation (one electron is ejected from the atom with the remaining ionic core left in an excited state) 4. Ground-state correlation (correlations occurring because of pair excitations in the ground state of the atom before the interaction with the radiation field) 5. Multiple photoionization (one photon ejects two or more photoelectrons)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
