Electron scattering on stored mononucleotide anions
Collisions between electrons and deprotonated mononucleotides, AMP and UMP, were studied at the electrostatic storage ring ELISA where the two anions were stored with a 1/e lifetime of 13.5 s. It is found that the threshold energy for electron-induced reactions leading to production of neutral fragm...
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| Veröffentlicht in: | Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2004-08, Vol.70 (2), Article 020701 |
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| container_title | Physical review. A, Atomic, molecular, and optical physics |
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| creator | Bluhme, H. Jensen, M. J. Nielsen, S. Brøndsted Pedersen, U. V. Seiersen, K. Svendsen, A. Andersen, L. H. |
| description | Collisions between electrons and deprotonated mononucleotides, AMP and UMP, were studied at the electrostatic storage ring ELISA where the two anions were stored with a 1/e lifetime of 13.5 s. It is found that the threshold energy for electron-induced reactions leading to production of neutral fragments is as high as about 12 eV for both species. The high threshold is explained within the context of a classical reaction model, applicable for atomic anions, and a high electron-binding energy of about 5 eV for the two mononucleotides. There is no evidence in the cross sections for formation of short-lived doubly charged anions. |
| doi_str_mv | 10.1103/PhysRevA.70.020701 |
| format | Article |
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| ispartof | Physical review. A, Atomic, molecular, and optical physics, 2004-08, Vol.70 (2), Article 020701 |
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| language | eng |
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| source | American Physical Society Journals |
| subjects | AMP ANIONS ATOMIC AND MOLECULAR PHYSICS BINDING ENERGY BIOPHYSICS CHEMICAL BONDS CROSS SECTIONS DISSOCIATION DNA ELECTRON-MOLECULE COLLISIONS ELECTRONS EV RANGE LIFETIME SCATTERING STORAGE RINGS THRESHOLD ENERGY |
| title | Electron scattering on stored mononucleotide anions |
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