First forbidden?-Decay logft values of neutron rich te isotopes
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Tarih
2019
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Alanya Alaaddin Keykubat Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Neutral tellurium detectedin three metal-poor stars enriched by products of r-process nucleosynthesis byusing near-ultraviolet spectra obtained with the Space Telescope ImagingSpectrograph on board the Hubble Space Telescope. Tellurium (Te, Z=52) wasfound at the second r-process peak (A?130) associated with N=82 neutron shellclosure. The beta decay rates of unstable isotopes may be drasticallychanged under stellar conditions. In this work, we have been investigated thefirst forbidden (|?J|=0, 1 and 2) transitions strength of some neutron richTellurium isotopes. The theoretical framework is based on a proton neutronquasiparticle random phase approximation (pn-QRPA) in the particle-hole (ph)channel. The transition probabilities in the Woods-Saxon potential basis havebeen calculated within the x-approximation.The calculated first forbidden b-decay logft valuesare in better agreement with experimental data.
Açıklama
Anahtar Kelimeler
First Forbidden, ?-Decay, Logft, First Forbidden, ?-Decay, Logft
Kaynak
ALKÜ Fen Bilimleri Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
1
Sayı
NSP2018 Özel Sayı
