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Dipole-driven dynamics for near-threshold electron/positron interactions with pyrimidinic DNA bases: a path to compound formations
Abstract
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.
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Authors (3)
-
Fabio Carelli
- University of Innsbruck Institute of Ion Physics
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F.a. Gianturco
- University of Innsbruck Institute of Ion Physics
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Keywords
Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
MOLECULAR PHYSICS
no. 69,
edition 6,
pages 1 - 14,
ISSN: 0026-8976 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Carelli F., Franz J., Gianturco F.: Dipole-driven dynamics for near-threshold electron/positron interactions with pyrimidinic DNA bases: a path to compound formations// MOLECULAR PHYSICS. -Vol. 69, iss. 6 (2015), s.1-14
- DOI:
- Digital Object Identifier (open in new tab) 10.1080/00268976.2015.1092609
- Verified by:
- Gdańsk University of Technology
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