Structure of the two-neutrino double-? decay matrix elements within perturbation theory
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F15%3A00242231" target="_blank" >RIV/68407700:21670/15:00242231 - isvavai.cz</a>
Result on the web
<a href="http://journals.aps.org/prc/abstract/10.1103/PhysRevC.91.064311" target="_blank" >http://journals.aps.org/prc/abstract/10.1103/PhysRevC.91.064311</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.91.064311" target="_blank" >10.1103/PhysRevC.91.064311</a>
Alternative languages
Result language
angličtina
Original language name
Structure of the two-neutrino double-? decay matrix elements within perturbation theory
Original language description
The two-neutrino double-? Gamow-Teller and Fermi transitions are studied within an exactly solvable model, which allows a violation of both spin-isospin SU(4) and isospin SU(2) symmetries, and is expressed with generators of the SO(8) group. It is foundthat this model reproduces the main features of realistic calculation within the quasiparticle random-phase approximation with isospin symmetry restoration concerning the dependence of the two-neutrino double-? decay matrix elements on isovector and isoscalar particle-particle interactions. By using perturbation theory an explicit dependence of the two-neutrino double-? decay matrix elements on the like-nucleon pairing, particle-particle T=0 and T=1, and particle-hole proton-neutron interactions is obtained. It is found that double-? decay matrix elements do not depend on the mean field part of Hamiltonian and that they are governed by a weak violation of both SU(2) and SU(4) symmetries by the particle-particle interaction of Hamiltonia
Czech name
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Czech description
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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
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Result continuities
Project
<a href="/en/project/LM2011027" target="_blank" >LM2011027: Project LSM/ULISSE ? contribution of the Czech Republic to the extension of the large research infrastructure of European importance (underground laboratory and construction of SuperNEMO experiment, continuation of the Czech participation)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
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
0556-2813
e-ISSN
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Volume of the periodical
91
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
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UT code for WoS article
000356482300001
EID of the result in the Scopus database
2-s2.0-84936804612