Dispersive effects from a comparison of electron and positron scattering from12C
| Autor: | C. Marchand, J. Marroncle, Paul Gueye, A. Magnon, Vincent Breton, J. F. Danel, Salvatore Frullani, A. Zghiche-Lakéhal-Ayat, P. Vernin, J.-M. Le Goff, M. Jodice, M. Bernheim, J.E. Ducret, Marco Traini, F. Garibaldi, J. Morgenstern, E. A. J. M. Offermann, F. Ghio, Z. E. Meziani, L. Lakehal-Ayat, D.B. Isabelle |
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| Rok vydání: | 1998 |
| Předmět: |
Elastic scattering
Diffraction Physics Nuclear and High Energy Physics 010308 nuclear & particles physics Scattering Particle accelerator Electron 01 natural sciences Linear particle accelerator law.invention Cross section (physics) Positron law 0103 physical sciences Atomic physics 010306 general physics |
| Zdroj: | Physical Review C. 57:2107-2110 |
| ISSN: | 1089-490X 0556-2813 |
| DOI: | 10.1103/physrevc.57.2107 |
| Popis: | Dispersive effects have been investigated by comparing elastic scattering of electrons and positrons from {sup 12}C at the Saclay Linear Accelerator. The results demonstrate that dispersive effects at energies of 262 MeV and 450 MeV are less than 2% below the first diffraction minimum [0.95 < q{sub eff} (fm{sup -1}) < 1.66] in agreement with the prediction of Friar and Rosen. At the position of this minimum (q{sub eff} = 1.84 fm{sup -1}), the deviation between the positron scattering cross section and the cross section derived from the electron results is -44% {+-} 30%. |
| Databáze: | OpenAIRE |
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