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Description
| - The nature of E1 low-energy strength (LES), often denoted as a %22pygmy dipole resonance%22, is analyzed within the random-phase approximation (RPA) in Pb-208 using Skyrme forces in a fully self-consistent manner. A first overview is given by the strength functions for the dipole, compressional, and toroidal operators. More detailed insight is gained by averaged transition densities and currents where the latter provide a very illustrative flow pattern. The analysis reveals clear isoscalar toroidal flow in the low-energy bin 6.0-8.8 MeV of the LES and a mixed isoscalar/isovector toroidal/compression flow in the higher bin 8.8-10.5 MeV. Thus the modes covered by LES embrace both vortical and irrotational motion. The simple collective picture of the LES as a %22pygmy%22 mode (oscillations of the neutron excess against the nuclear core) is not confirmed. DOI: 10.1103/PhysRevC.87.024305
- The nature of E1 low-energy strength (LES), often denoted as a %22pygmy dipole resonance%22, is analyzed within the random-phase approximation (RPA) in Pb-208 using Skyrme forces in a fully self-consistent manner. A first overview is given by the strength functions for the dipole, compressional, and toroidal operators. More detailed insight is gained by averaged transition densities and currents where the latter provide a very illustrative flow pattern. The analysis reveals clear isoscalar toroidal flow in the low-energy bin 6.0-8.8 MeV of the LES and a mixed isoscalar/isovector toroidal/compression flow in the higher bin 8.8-10.5 MeV. Thus the modes covered by LES embrace both vortical and irrotational motion. The simple collective picture of the LES as a %22pygmy%22 mode (oscillations of the neutron excess against the nuclear core) is not confirmed. DOI: 10.1103/PhysRevC.87.024305 (en)
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Title
| - Toroidal nature of the low-energy E1 mode
- Toroidal nature of the low-energy E1 mode (en)
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skos:prefLabel
| - Toroidal nature of the low-energy E1 mode
- Toroidal nature of the low-energy E1 mode (en)
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skos:notation
| - RIV/00216208:11320/13:10191514!RIV14-GA0-11320___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - I, P(GA13-07117S), Z(MSM0021620859)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216208:11320/13:10191514
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - neutron; nuclei; sum-rules; dipole mode (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Physical Review C - Nuclear Physics
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Kvasil, Jan
- Nesterenko, V. O.
- Reinhard, P. -G.
- Repko, Anton
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1103/PhysRevC.87.024305
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http://localhost/t...ganizacniJednotka
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