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Pygmy dipole resonance in Ce-140 via inelastic scattering of O-17
Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland..
Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland..
Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland..
Polish Acad Sci, Inst Nucl Phys, PL-31342 Krakow, Poland..
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2016 (English)In: PHYSICAL REVIEW C, ISSN 2469-9985, Vol. 93, no 4, 044330Article in journal (Refereed) PublishedText
Abstract [en]

The gamma decay from the high-lying states of Ce-140 excited via inelastic scattering of O-17 at a bombarding energy of 340 MeV was measured using the high-resolution AGATA-demonstrator array in coincidence with scattered ions detected in two segmented Delta E-E silicon detectors. Angular distributions of scattered ions and emitted gamma rays were measured, as well as their differential cross sections. The excitation of 1(-) states below the neutron separation energy is similar to the one obtained in reactions with the alpha isoscalar probe. The comparison between the experimental differential cross sections and the corresponding predictions using the distorted-wave Born approximation allowed us to extract the isoscalar component of identified 1(-) pygmy states. For this analysis the form factor obtained by folding microscopically calculated transition densities and optical potentials was used.

Place, publisher, year, edition, pages
2016. Vol. 93, no 4, 044330
National Category
Fusion, Plasma and Space Physics
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URN: urn:nbn:se:uu:diva-297360DOI: 10.1103/PhysRevC.93.044330ISI: 000374954100004OAI: oai:DiVA.org:uu-297360DiVA: diva2:941868
Available from: 2016-06-23 Created: 2016-06-22 Last updated: 2016-06-23Bibliographically approved

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