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| Título: | Isospin character of low-lying pygmy dipole states in Pb 208 via inelastic scattering of O 17 ions |
Autor: | Crespi, F.C.L.; Bracco, A.; Nicolini, R.; Mengoni, D.; Gadea, Andrés CSIC ORCID; Görgen, A.; Gottardo, A.; Isocrate, R.; Jolie, J.; Jungclaus, Andrea CSIC ORCID; Valiente-Dobón, J. J. | Fecha de publicación: | 2-jul-2014 | Editor: | American Physical Society | Citación: | Physical Review Letters 113: 012501 (2014) | Resumen: | The properties of pygmy dipole states in Pb208 were investigated using the Pb208(O17, O17'γ) reaction at 340 MeV and measuring the γ decay with high resolution with the AGATA demonstrator array. Cross sections and angular distributions of the emitted γ rays and of the scattered particles were measured. The results are compared with (γ, γ′) and (p, p′) data. The data analysis with the distorted wave Born approximation approach gives a good description of the elastic scattering and of the inelastic excitation of the 2+ and 3- states. For the dipole transitions a form factor obtained by folding a microscopically calculated transition density was used for the first time. This has allowed us to extract the isoscalar component of the 1- excited states from 4 to 8 MeV. © 2014 American Physical Society. | Descripción: | F.C.L. Crespi et al. ; 5 pags. ; 4 figs. ; PACS numbers: 24.30.Cz, 24.10.Eq, 25.55.Ci, 27.80.+w | URI: | http://hdl.handle.net/10261/110318 | DOI: | 10.1103/PhysRevLett.113.012501 | Identificadores: | doi: 10.1103/PhysRevLett.113.012501 issn: 1079-7114 |
| Aparece en las colecciones: | (IFIC) Artículos (CFMAC-IEM) Artículos |
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| Crespi.pdf | 601,12 kB | Adobe PDF |  Visualizar/Abrir |
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