Electron Scattering from Pyrazine compared with Pyrimidine and Benzene

POSTER

Abstract

Pyrazine (C$_{4}$H$_{4}$N$_{2})$ is a model molecule for studying electron interactions with nucleases. Also pyrazine is an ideal target, due to its high symmetry ($D_{2h})$, for theoreticians to investigate electron collisions with complex DNA/RNA bases. In this work we present absolute elastic differential cross sections and elastic excitation functions for scattering of low-energy electrons by pyrazine measured using a crossed electron-target beam apparatus at the Australian National University. A comparison is also made between pyrazine cross sections with previously measured pyrimidine and benzene cross sections. Since all those molecules are similar in structure and considered as analogues to nucleobases, we intend to discuss similarities and differences in electron scattering results between three molecules.

*This work was supported by the Australian Research Council.

Authors

  • P.D. Palihawadana

    • The Australian National University, Canberra, Australia

  • J.P. Sullivan

    • The Australian National University, Canberra, Australia

  • S.J. Buckman

    • The Australian National University, Canberra, Australia

  • Michael Brunger

    • CAMS, Flinders University, Adelaide, Australia
    • Flinders University, Adelaide, Australia
    • Flinders University

  • Carl Winstead

    • California Institute of Technology, California
    • Caltech, CA, USA
    • California Institute of Technology, Pasadena, CA, USA

  • Vincent McKoy

    • Caltech, CA, USA
    • California Institute of Technology, Pasadena, CA, USA

  • G. Garcia

    • CSIC, Madrid, Spain

  • F. Blanco

    • Universidad Complutense de Madrid, Madrid, Spain