Toroidal nature of the low-energy E1 mode
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10191514" target="_blank" >RIV/00216208:11320/13:10191514 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevC.87.024305" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.87.024305</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.87.024305" target="_blank" >10.1103/PhysRevC.87.024305</a>
Alternative languages
Result language
angličtina
Original language name
Toroidal nature of the low-energy E1 mode
Original language description
The nature of E1 low-energy strength (LES), often denoted as a "pygmy dipole resonance", 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 inthe 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"pygmy" mode (oscillations of the neutron excess against the nuclear core) is not confirmed. DOI: 10.1103/PhysRevC.87.024305
Czech name
—
Czech description
—
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/GA13-07117S" target="_blank" >GA13-07117S: Statistical approaches to quantum many-body systems</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review C - Nuclear Physics
ISSN
0556-2813
e-ISSN
—
Volume of the periodical
87
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
—
UT code for WoS article
000314684000003
EID of the result in the Scopus database
—