title: Interaction of low-energy electrons with the pyrimidine bases and nucleosides of DNA.
abstract: We report computed cross sections for the elastic scattering of slow electrons by the pyrimidine bases of DNA, thymine and cytosine, and by the associated nucleosides, deoxythymidine and deoxycytidine. For the isolated bases, we carried out calculations both with and without the inclusion of polarization effects. For the nucleosides, we neglect polarization effects but estimate their influence on resonance positions by comparison with the results for the corresponding bases. Where possible, we compare our results with experiment and previous calculations.
authors.affiliation: A. A. Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, USA.
authors.forename: Carl
authors.initials: C
authors.lastname: Winstead
authors.forename: Vincent
authors.initials: V
authors.lastname: McKoy
authors.forename: Sergio
authors.initials: S
authors.lastname: d'Almeida Sanchez
mesh_terms: D004247:DNA / Q000737:chemistry*; D004583:Electrons; D009690:Nucleic Acid Conformation; D009705:Nucleosides / Q000737:chemistry*; D011743:Pyrimidines / Q000737:chemistry*; D053838:Scattering, Small Angle
chemical_list: D009705:Nucleosides; D011743:Pyrimidines; D004247:DNA; C030986:pyrimidine