Electric dipole polarizability of <sup>40</sup>Ca
The electric dipole strength distribution in 40Ca between 5 and 25 MeV has been determined at RCNP, Osaka, from proton inelastic scattering experiments at very forward angles. Combined with total photoabsorption data at higher excitation energy, this enables an extraction of the electric dipole pola...
| Autores: | , , , , , , , , , , , , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Recursos: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:2445/218761 |
| Acesso em linha: | https://hdl.handle.net/2445/218761 |
| Access Level: | acceso abierto |
| Palavra-chave: | Estructura nuclear Teoria del funcional de densitat Reaccions nuclears Nuclear structure Density functionals Nuclear reactions |
| Resumo: | The electric dipole strength distribution in 40Ca between 5 and 25 MeV has been determined at RCNP, Osaka, from proton inelastic scattering experiments at very forward angles. Combined with total photoabsorption data at higher excitation energy, this enables an extraction of the electric dipole polarizability (40Ca)=1.92(17) fm3. Together with the measured in 48Ca, it provides a stringent test of modern theoretical approaches, including coupled-cluster calculations with chiral effective field theory interactions and state-of-the art energy density functionals. The emerging picture is that for this medium-mass region dipole polarizabilities are well described theoretically, with important constraints for the neutron skin in 48Ca and related equation of state quantities. |
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