Pygmy and isovector giant dipole resonance in $$^{175}$$Lu

Tabar, E.; Yakut, H.; Hoşgör, G.; Kemah, E.

doi:10.1140/epja/s10050-022-00749-z

Cited by 6 publications

(3 citation statements)

References 70 publications

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“…Our previous studies [62,65,[67][68][69] predicted a broadening in the GDR's width at smoothing parameter Δ due to the GDR splitting into two distinct components that correspond to the ΔK=0 and ΔK=1 branches for odd-A deformed nuclei. The photoabsorption cross-section demonstrates a similar trend in the present study in that there is a general splitting of the GDR with strong deformation (see element (a) of figure 1).…”

Section: Resultsmentioning

confidence: 95%

“…Pu. The nuclear spectra of odd-mass nuclei ( 239,243 Pu) are directly related to the nuclear spectra of their corresponding core nuclei ( 238,242 Pu), because the additional neutron outside the core nucleus acts as a spectator [62]. A similar analysis, including the TGI-QPNM and the TGI-QRPA approaches, has been carried out for 233-239 U isotopes [65].…”

Section: Calculation Schemementioning

confidence: 99%

“…For this study, we applied a quasiparticle phonon nuclear model (QPNM) approach based on rotational invariant (RI-), translational, and Galilean invariant (TGI-) requirements, and this allowed us to analyze the spectral properties of the excited J π =1 − and 1 + states within the same excitation energy region [62][63][64][65][66][67][68][69][70][71]. This extended version of the QPNM [72] formalism considers transitions of the E1 and M1 types.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Microscopic calculation of the electromagnetic dipole strength for ^239,243Pu isotopes

Yakut¹,

Tabar²,

Kemah³

et al. 2022

J. Phys. G: Nucl. Part. Phys.

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This work investigates the electric and magnetic dipole (E1 and M1) responses for 239,243Pu isotopes based on the quasiparticle phonon nuclear model (QPNM) by adding the residual interactions for addressing the violations of rotational, translational, and Galilean symmetries caused by the mean-field approach, for the first time. We focus on the E1 and M1 dipole strengths and photo-absorption cross sections up to 20 MeV, and the results reveal that the giant dipole resonance (GDR) best describes the experimental trend with a ratio of 95%. It appears that most of the E1 strength is found at Ex=8–20 MeV, but the total B(E1)↑ strength for the pygmy dipole resonance (PDR) at Ex=4–8 MeV accounts for some 1.83 e2fm2, which in turn corresponds to 2% of the Thomas–Reiche–Kuhn (TRK) sum rule. Furthermore, the resultant total B(M1)↑ value for the scissors mode strength below 4 MeV is 5.65 , which is lower than that of the Oslo data (10.1(15) ). However, the theoretically predicted scissors resonance structure with two peaks in the 1–3.5 MeV energy range exhibits a similar trend to that found in the Oslo data.

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Section: Resultsmentioning

confidence: 95%

Section: Calculation Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microscopic calculation of the electromagnetic dipole strength for ^239,243Pu isotopes

Yakut¹,

Tabar²,

Kemah³

et al. 2022

J. Phys. G: Nucl. Part. Phys.

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Electric dipole response in 156–170Er nuclei

Quliyev

Guliyev

Kuliev

2023

Chinese Journal of Physics

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The electric dipole characteristics of well-deformed ^171,173Yb

Hoşgör,

Tabar,

Kemah

et al. 2024

J. Phys. G: Nucl. Part. Phys.

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The electric dipole response of well-deformed 171,173Yb in the giant dipole resonance (GDR) and pygmy dipole resonance (PDR) range has been theoretically analyzed using the Translation and Galileo Invariant Quasiparticle Phonon Nuclear Model (TGI-QPNM). TGI-QPNM consist of an axially symmetric Woods-Saxon Potential, monopole pairing, dipole-dipole residual interaction and the restoration terms for broken translation and Galilean symmetries. Numerical calculations show the existence of considerable E1 excitations around the neutron separation threshold (Sn) in both isotopes. The existence of PDR in the 171,173Yb nucleus is discussed. The TGI-QPNM results of the photoabsorption cross-section give a double-humped shape in both nuclei, consistent with the available experimental data. The integrated moments (σ0, σ-1) and the centroid energies in the GDR region are also reproduced well.

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Pygmy and isovector giant dipole resonance in $$^{175}$$Lu

Cited by 6 publications

References 70 publications

Microscopic calculation of the electromagnetic dipole strength for ^239,243Pu isotopes

Microscopic calculation of the electromagnetic dipole strength for ^239,243Pu isotopes

Electric dipole response in 156–170Er nuclei

The electric dipole characteristics of well-deformed ^171,173Yb

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Pygmy and isovector giant dipole resonance in $$^{175}$$Lu

Cited by 6 publications

References 70 publications

Microscopic calculation of the electromagnetic dipole strength for 239,243Pu isotopes

Microscopic calculation of the electromagnetic dipole strength for 239,243Pu isotopes

Electric dipole response in 156–170Er nuclei

The electric dipole characteristics of well-deformed 171,173Yb

Contact Info

Product

Resources

About

Microscopic calculation of the electromagnetic dipole strength for ^239,243Pu isotopes

Microscopic calculation of the electromagnetic dipole strength for ^239,243Pu isotopes

The electric dipole characteristics of well-deformed ^171,173Yb