Dipole response in Sn-132 within a self-consistent multiphonon approach

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10283741" target="_blank" >RIV/00216208:11320/14:10283741 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389005:_____/14:00433035

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevC.90.014310" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.90.014310</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.90.014310" target="_blank" >10.1103/PhysRevC.90.014310</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dipole response in Sn-132 within a self-consistent multiphonon approach

Popis výsledku v původním jazyce

A self-consistent calculation is performed within an equation of motion method to study the electric dipole response in the neutron rich Sn-132 with special attention at the low-energy excitations associated with the pygmy dipole resonance. A basis of one- plus two-phonon states is constructed by solving iteratively a set of equations of motion and adopted to bring the nuclear Hamiltonian to diagonal form. The phonons are generated in a Tamm-Dancoff approximation using a Hartree-Fock basis. The Hamiltonian is composed of an intrinsic kinetic term and an optimized two-body chiral potential. If complemented with a weak phenomenological density dependent term, such a potential improves substantially the description of the dipole response as compared to other realistic interactions. The two-phonon states play an important role in determining the fine structure of the giant dipole resonance and in enhancing the fragmentation of the strength at low energy, in fair agreement with the availabl

Název v anglickém jazyce

Dipole response in Sn-132 within a self-consistent multiphonon approach

Popis výsledku anglicky

A self-consistent calculation is performed within an equation of motion method to study the electric dipole response in the neutron rich Sn-132 with special attention at the low-energy excitations associated with the pygmy dipole resonance. A basis of one- plus two-phonon states is constructed by solving iteratively a set of equations of motion and adopted to bring the nuclear Hamiltonian to diagonal form. The phonons are generated in a Tamm-Dancoff approximation using a Hartree-Fock basis. The Hamiltonian is composed of an intrinsic kinetic term and an optimized two-body chiral potential. If complemented with a weak phenomenological density dependent term, such a potential improves substantially the description of the dipole response as compared to other realistic interactions. The two-phonon states play an important role in determining the fine structure of the giant dipole resonance and in enhancing the fragmentation of the strength at low energy, in fair agreement with the availabl

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-07117S" target="_blank" >GA13-07117S: Statistické přístupy ke kvantovým mnohočásticovým systémům</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review C - Nuclear Physics

ISSN

0556-2813

e-ISSN

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Svazek periodika

90

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

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Kód UT WoS článku

000339094300001

EID výsledku v databázi Scopus

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