Comparison of Experimental and Theoretical Double Differential Cross Sections of CH4 at 250 eV Impact Energy

N. Isika, M. Yavuzb, E. Aksoyb, Z.N. Ozerb, M. Ulub, M. Sahlaouic, L. Boumedienec, M. Bouamoudc,d, M. Doganb aMehmet Akif Ersoy University, Department of Physics, Burdur, Turkey bAfyon Kocatepe University, e-COL Laboratory, Afyonkarahisar, Turkey cUniversity Center of Naâma, Naâma, Algeria dAboubekr Belkaid University,Theoretical Physics Laboratory, Tlemcen, Algeria

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In this study, experimental and theoretical double differential cross section (DDCS) data for methane-electron interaction mechanism after the impact of a 250 eV electron have been comprehensively determined for a wide energy range of the detected electron, from 50 to 225 eV. The first Born-One Coulomb wave modeling with Gamow factor has been calculated to analyze experimental DDCS results for a correct description of the electron impact ionization of methane molecule. It is found that these theoretical calculations are successful to describe the post-collision interaction effects due to the Coulomb long-range interaction between the outgoing electrons in the final state. A considerable agreement is found between experimental and theoretical results.

DOI: 10.12693/APhysPolA.127.1112 PACS numbers: 34.80.Gs