Astrophysical relevance of the low-energy dipole strength of 206Pb

Autor: Tonchev A.P., Tsoneva N., Goriely S., Bhatia C., Arnold C.W., Hammond S.L., Kelley J.H., Kwan E., Lenske H., Piekarewicz J., Raut R., Rusev G., Shizuma T., Tornow W.
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: EPJ Web of Conferences, Vol 178, p 04003 (2018)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/201817804003
Popis: The dipole strength of 206Pb was studied below the neutron separation energy using photon scattering experiments at the HIGS facility. Utilizing the technique of nuclear resonance fluorescence with 100% linearly-polarized photon beams, the spins, parities, branching ratios and decay widths of excited states in 206Pb from 4.9 - 8.1 MeV have been measured. The new experimental information is used to reliably predict the neutron capture cross section of 205Pb, an important branch point nucleus along the s-process path of nucleosynthesis.
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