{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363388844981409280.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/j.physletb.2017.07.062"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0370269317306184?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S0370269317306184?httpAccept=text/plain"}},{"identifier":{"@type":"DOI","@value":"10.48550/arxiv.1708.03522"}},{"identifier":{"@type":"HANDLE","@value":"2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/256603"}}],"dc:title":[{"@value":"Pygmy and core polarization dipole modes in 206Pb: Connecting nuclear structure to stellar nucleosynthesis"}],"description":[{"notation":[{"@value":"A high-resolution study of the electromagnetic response of $^{206}$Pb below the neutron separation energy is performed using a ($\\vec��$,$��'$) experiment at the HI$\\vec��$S facility. Nuclear resonance fluorescence with 100% linearly polarized photon beams is used to measure spins, parities, branching ratios, and decay widths of excited states in $^{206}$Pb from $4.9$ to $8.1$MeV. The extracted $��$$B$(E1)$\\uparrow$ and $��$$B$(M1)$\\uparrow$ values for the total electric and magnetic dipole strength below the neutron separation energy are 0.9$\\pm$0.2e$^2$fm$^2$ and 8.3$\\pm$2.0$��_{N}^2$, respectively. These measurements are found to be in very good agreement with the predictions from an energy-density functional (EDF) plus quasiparticle phonon model (QPM). Such a detailed theoretical analysis allows to separate the pygmy dipole resonance from both the tail of the giant dipole resonance and multi-phonon excitations. Combined with earlier photonuclear experiments above the neutron separation energy, one extracts a value for the electric dipole polarizability of $^{206}$Pb of $��_{D}\\!=\\!122\\pm10$mb/MeV. When compared to predictions from both the EDF+QPM and accurately calibrated relativistic EDFs, one deduces a range for the neutron-skin thickness of $R_{\\rm skin}^{206}\\!=\\!0.12$-$0.19$fm and a corresponding range for the slope of the symmetry energy of $L\\!=\\!48$-$60$MeV. This newly obtained information is also used to estimate the Maxwellian-averaged radiative cross section $^{205}$Pb(n,$��$)$^{206}$Pb at 30keV to be $��\\!=\\!130\\!\\pm\\!25$mb. The astrophysical impact of this measurement--on both the s-process in stellar nucleosynthesis and on the equation of state of neutron-rich matter--is discussed."}]},{"notation":[{"@value":"8 pages and 4 figures. Manuscript accepted for publication in Physics Letters B"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383388844981409286","@type":"Researcher","foaf:name":[{"@value":"A.P. Tonchev"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409157","@type":"Researcher","foaf:name":[{"@value":"N. Tsoneva"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409153","@type":"Researcher","foaf:name":[{"@value":"C. Bhatia"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409280","@type":"Researcher","foaf:name":[{"@value":"C.W. Arnold"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409285","@type":"Researcher","foaf:name":[{"@value":"S. Goriely"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409154","@type":"Researcher","foaf:name":[{"@value":"S.L. Hammond"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409282","@type":"Researcher","foaf:name":[{"@value":"J.H. Kelley"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409287","@type":"Researcher","foaf:name":[{"@value":"E. Kwan"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409156","@type":"Researcher","foaf:name":[{"@value":"H. Lenske"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409152","@type":"Researcher","foaf:name":[{"@value":"J. Piekarewicz"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409284","@type":"Researcher","foaf:name":[{"@value":"R. Raut"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409281","@type":"Researcher","foaf:name":[{"@value":"G. Rusev"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409155","@type":"Researcher","foaf:name":[{"@value":"T. Shizuma"}]},{"@id":"https://cir.nii.ac.jp/crid/1383388844981409283","@type":"Researcher","foaf:name":[{"@value":"W. Tornow"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"03702693"}],"prism:publicationName":[{"@value":"Physics Letters B"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2017-10","prism:volume":"773","prism:startingPage":"20","prism:endingPage":"25"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/","https://www.elsevier.com/legal/tdmrep-license","http://creativecommons.org/licenses/by/4.0/"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0370269317306184?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0370269317306184?httpAccept=text/plain"}],"createdAt":"2017-08-02","modifiedAt":"2025-10-07","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Quadrupole-Resonance","dc:title":"Quadrupole-Resonance"},{"@id":"https://cir.nii.ac.jp/all?q=Pygmy%20Dipole%20Resonance","dc:title":"Pygmy Dipole 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