Imprint of pairing correlation in (n, γ) and Maxwellian-averaged cross sections of an odd-odd 166Ho nucleus

Phuc, Le Tan; Dong, Tran Vu; Dang, Nguyen Dinh; Hue, Bui Minh; Huong, Le Thi Quynh; Dey, Balaram; Anh, Nguyen Ngoc; Hung, Nguyen Quang

doi:10.1016/j.physletb.2023.138421

Physics Letters B

2024

DOI: 10.1016/j.physletb.2023.138421

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Imprint of pairing correlation in (n, γ) and Maxwellian-averaged cross sections of an odd-odd 166Ho nucleus

Le Tan Phuc,

Tran Vu Dong,

Nguyen Dinh Dang

et al.

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2024

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Cited by 2 publications

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Impact of nuclear level density and γ-ray strength function in (n,γ) and Maxwellian-averaged cross-section of ⁶⁹Zn nucleus

Senapati,

Mondal,

Bhattacharya

et al. 2024

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

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The present paper highlights the impact of nuclear level density (NLD) and γ-ray strength function (γ-SF) on (n,γ) and Maxwellian-averaged cross-section of 69Zn nucleus. At first, the existing NLD and γ-SF models (in TALYS statistical model code) have been utilized to understand the role of NLD and γ-SF in neutron capture reaction cross-section. It is seen that most of the combinations of existing NLDs and γ-SFs (phenomenological and/or microscopic) cannot explain the experimental data. Therefore, the microscopic EP+IPM (exact pairing plus independent particle model) and EP+PDM (exact pairing plus phonon damping model) have been carriedout to calculate the NLD and γ-SF of 69Zn nucleus, respectively, by employing the exact treatment of thermal pairing. It is seen that microscopic EP+IPM NLD and EP+PDM γ-SF explain the experimental data better than other combinations, indicating the impact of exact treatment of thermal pairing correlation. In addition, the inclusion of an up-bend (UB) structure in γ-SF further improves the comparison with the experimental data in the low energy region (∼ 0.01-0.15 MeV), indicating the possibility of having an UB structure in γ-SF of 69Zn. The 68Zn(n,γ)69Zn reaction cross-section obtained by utilizing the EP+IPM NLD and EP+PDM γ-SF includingUB structure is then used to predict the Maxwellian-averaged cross-sections, and the obtained results show reasonable agreement with all the available experimental data taken from the Karlsruhe Astrophysical Database of Nucleosynthesis in Stars. The present results reflect the impact of microscopic NLD and γ-SF on the precise description and/or prediction of the astrophysical reaction cross-section.

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Impact of nuclear level density and γ-ray strength function in (n,γ) and Maxwellian-averaged cross-section of ⁶⁹Zn nucleus

Senapati,

Mondal,

Bhattacharya

et al. 2024

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

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Possible existence of the pygmy dipole resonance built on excited states in the neutron-rich Ge80 nucleus

Phuc,

Dang,

et al. 2024

Phys. Rev. C

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Imprint of pairing correlation in (n, γ) and Maxwellian-averaged cross sections of an odd-odd 166Ho nucleus

Cited by 2 publications

References 66 publications

Impact of nuclear level density and γ-ray strength function in (n,γ) and Maxwellian-averaged cross-section of ⁶⁹Zn nucleus

Impact of nuclear level density and γ-ray strength function in (n,γ) and Maxwellian-averaged cross-section of ⁶⁹Zn nucleus

Possible existence of the pygmy dipole resonance built on excited states in the neutron-rich Ge80 nucleus

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Imprint of pairing correlation in (n, γ) and Maxwellian-averaged cross sections of an odd-odd 166Ho nucleus

Cited by 2 publications

References 66 publications

Impact of nuclear level density and γ-ray strength function in (n,γ) and Maxwellian-averaged cross-section of 69Zn nucleus

Impact of nuclear level density and γ-ray strength function in (n,γ) and Maxwellian-averaged cross-section of 69Zn nucleus

Possible existence of the pygmy dipole resonance built on excited states in the neutron-rich Ge80 nucleus

Contact Info

Product

Resources

About

Impact of nuclear level density and γ-ray strength function in (n,γ) and Maxwellian-averaged cross-section of ⁶⁹Zn nucleus

Impact of nuclear level density and γ-ray strength function in (n,γ) and Maxwellian-averaged cross-section of ⁶⁹Zn nucleus