| Texto completo | |
| Autor(es): |
Mangiarotti, A.
;
Jakubassa-Amundsen, D. H.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW A; v. 96, n. 4, p. 10-pg., 2017-10-09. |
| Resumo | |
The analytic Sommerfeld-Maue theory, including the next-to-leading-order correction, and the relativistic Dirac partial-wave theory are probed by a systematic comparison of the bremsstrahlung spectra with available experimental data. These measurements cover a wide range of nuclear charge numbers (13 <= Z <= 79), collision energies (1-10 MeV), and photon angles (4 degrees <= theta(k) <= 60 degrees). It is found that the analytic model performs well for Z <= 13 at all angles down to very low photon frequencies. For high charge numbers, at high photon energies (i.e., in the short-wavelength limit) or for the larger angles at all photon energies, the partial-wave theory has to be used. For intermediate Z <= 50, the maximum angle up to which the analytic formulae can be used decreases with increasing Z. (AU) | |
| Processo FAPESP: | 13/15634-5 - Estudo das propriedades do bremsstrahlung na faixa de energia de alguns MeV |
| Beneficiário: | Marcos Nogueira Martins |
| Modalidade de apoio: | Auxílio à Pesquisa - Pesquisador Visitante - Internacional |
| Processo FAPESP: | 16/13116-5 - Medidas sistemáticas do espalhamento múltiplo de elétrons e prótons com energias até 5 MEV |
| Beneficiário: | Alessio Mangiarotti |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |