Interchannel mixing in the K-shell photoionization of CH4

  • Nikolay M. NovikovskiyEmail author
  • Dmitriy V. Rezvan
  • Ivan D. Petrov
  • Boris M. Lagutin
  • Philipp V. Demekhin
  • Victor L. SukhorukovEmail author
Regular Article
Part of the following topical collections:
  1. Topical Issue: Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces (2018)


Rearrangement of the electron shells accompanying inner-shell photoionization of the CH4 molecule is studied theoretically. For this purpose, the K-shell photoionization cross section σ1s (ω) and the respective photoelectron angular distribution (PAD) parameter βe1s(ω) are computed in different approximations using the single center method. It is obtained that a strong mixing of the partial ionization channels in the vicinity of the 1s ionization threshold, caused by the the non-spherical part of the molecular potential, results in a qualitative difference between the electronic rearrangement effects in molecules, as compared to atoms.


Topical issue 


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Copyright information

© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Nikolay M. Novikovskiy
    • 1
    Email author
  • Dmitriy V. Rezvan
    • 1
  • Ivan D. Petrov
    • 2
  • Boris M. Lagutin
    • 2
  • Philipp V. Demekhin
    • 3
  • Victor L. Sukhorukov
    • 1
    • 3
    Email author
  1. 1.Institute of Physics, Southern Federal UniversityRostov-on-DonRussia
  2. 2.Rostov State Transport UniversityRostov-on-DonRussia
  3. 3.Institute of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of KasselKasselGermany

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