Eur. Phys. J. D (2013) 67: 117
https://doi.org/10.1140/epjd/e2013-40081-x

Regular Article

Ionization of thymine by electron impact: investigation of inner shell orbitals

¹ SRMC, UMR CNRS 7565, University of Lorraine, BP 70239, 54506 Vandœuvre-les-Nancy, France
² Département de Physique, Faculté des Sciences, Université Constantine 1, 25000 Constantine, Algeria
³ LPQSD, Département de physique, Faculté des sciences, Université Sétif 1, 19000 Sétif, Algeria
⁴ Laboratoire d’Études des Microstructures et de Mécanique des Matériaux, Université de Lorraine UMR 7239, Île du Saulcy, 57045 Metz Cedex 1, France
⁵ School of Mathematical Sciences, Ramakrishna Mission Vivekananda University, Belur Math 711202, West Bengal, India
⁶ Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France

^a e-mail: shouamer@univ-setif.dz

Received: 13 February 2013
Received in final form: 15 April 2013
Published online: 25 June 2013

Abstract

Triply differential cross section for the ionization of inner orbitals of thymine by electron impact is investigated at low impact energy. Results of first and second Born calculations performed at 250 eV incident energy with coplanar asymmetric geometry are compared with recent experiments. The initial state of the target is described by one single center wavefunction. It is observed that second Born calculations improve substantially the agreement with experiments.