Investigation of Gamow–Teller strength of186 Hg within deformed pn-QRPA
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Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Canadian Science Publishing
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Recently, the total absorption gamma spectroscopy technique was used to determine the Gamow–Teller (GT) distribution of ?-decay of186 Hg. It was concluded that the best description of the measured data was obtained with dominantly prolate components for both parent186 Hg and daughter186 Au. Motivated by the recent findings, we investigate the effect of nuclear deformation on the energy distribution of the GT strength of the decay of186 Hg into186 Au within the framework of proton– neutron quasiparticle random phase approximation (pn-QRPA) based on the deformed Nilsson potential. To do the needful, we first calculate the energy levels and shape prediction of186 Hg within the interacting boson model. The computed GT strength distribution satisfied the model-independent Ikeda sum rule 100% (99.98%) for the prolate (oblate) case. Based on the strength distributions, the deformed pn-QRPA model with separable interaction prefers a prolate shape for the ground state of186 Hg and supports the shape coexistence for this nucleus. © 2022 The Author(s).
Açıklama
Anahtar Kelimeler
<sup>186</sup> Hg; deformation; Gamow–Teller strength; IBM-1; pn-QRPA
Kaynak
Canadian Journal of Physics
WoS Q Değeri
Scopus Q Değeri
Q3
Cilt
100
Sayı
7
