Elimination of spurious modes within quasiparticle random-phase approximation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10405187" target="_blank" >RIV/00216208:11320/19:10405187 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=aq8-lW-7fr" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=aq8-lW-7fr</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.99.044307" target="_blank" >10.1103/PhysRevC.99.044307</a>
Alternative languages
Result language
angličtina
Original language name
Elimination of spurious modes within quasiparticle random-phase approximation
Original language description
We suggest a generalized method for elimination of spurious admixtures (SA) from intrinsic nuclear excitations described within the quasiparticle random-phase approximation (QRPA). Various kinds of SA corrections are treated at the same theoretical ground. The known corrections are well reproduced. As relevant cases, we consider subtraction of SA related with (i) violation of the translational invariance (isovector E1 and isoscalar toroidal and compression E1 modes), (ii) pairing-induced nonconservation of the particle number (E2(K = 0) and E0 modes), and (iii) rotational invariance (E2(K = 1) and M1(K = 1) modes). The SA subtraction can be done at the level of QRPA states, electromagnetic responses, and even transition operators. The additional deformation-induced corrections for El excitations are proposed and shown to be essential for the compression isoscalar mode. The accuracy of the method is demonstrated by Skyrme QRPA calculations for axially deformed Sm-154.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/GA19-14048S" target="_blank" >GA19-14048S: Theoretical and experimental search for new features of electromagnetic nuclear excitations</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
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
ISSN
2469-9985
e-ISSN
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Volume of the periodical
99
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
044307
UT code for WoS article
000464738300002
EID of the result in the Scopus database
2-s2.0-85064391682