Calculations are reported for electron and positron scattering from isolated cytosine and thymine, where the two pyrimidinic single-ring DNA bases, in the gas-phase at energies near the elastic threshold, they reveal the special features of the dipole-driven scattering states. All molecules examined exhibit, in fact, supercritical (>1.67 D) permanent dipoles which can therefore also support, below threshold, excited bound compound states (M·e− and M·e+) classified as dipole-bound states. The possible paths for going from above to below the energy threshold to form whole, unfragmented bound complexes are discussed for both leptonic projectiles.
Authors
- Fabio Carelli,
- dr hab. Jan Franz link open in new tab ,
- F.a. Gianturco
Additional information
- DOI
- Digital Object Identifier link open in new tab 10.1080/00268976.2015.1092609
- Category
- Publikacja w czasopiśmie
- Type
- artykuł w czasopiśmie wyróżnionym w JCR
- Language
- angielski
- Publication year
- 2015
