A microscopic multiphonon approach to even and odd nuclei

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00477317" target="_blank" >RIV/61389005:_____/17:00477317 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/17:10368626
Result on the web
<a href="http://dx.doi.org/10.1088/1402-4896/aa6fa2" target="_blank" >http://dx.doi.org/10.1088/1402-4896/aa6fa2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1402-4896/aa6fa2" target="_blank" >10.1088/1402-4896/aa6fa2</a>

Result language
angličtina
Original language name
A microscopic multiphonon approach to even and odd nuclei
Original language description
The formalism of an equation of motion phonon method is briefly outlined. In even-even nuclei, the method derives equations of motion which generate an orthonormal basis of correlated n-phonon states (n = 0, 1, 2,...), built of constituent Tamm-Dancoff phonons, and, then, solves the nuclear eigenvalue problem in such a multiphonon basis. In odd nuclei, analogous equations yield a basis of correlated orthonormal multiphonon particle-core states to be used for the solution of the full eigenvalue equations. The formalism does not rely on approximations, but lends itself naturally to simplifying assumptions. As illustrated here, the method has been implemented numerically for studying the electric dipole response in the heavy neutron rich Pb-208 and Sn-132 and in the odd O-17 and F-17. Self-consistent calculations, using a chiral inspired Hamiltonian, have confirmed the important role of the multiphonon states in enhancing the fragmentation of the strength in the giant and pygmy resonance regions consistently with the experimental data.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
<a href="/en/project/GA13-07117S" target="_blank" >GA13-07117S: Statistical approaches to quantum many-body systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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