Re-examination of theβ-decay properties of As isotopes  

作　　者：Abdul Kabir Jameel-Un Nabi Wajeeha Khalid Hamad Almujibah 

机构地区：[1]Department of Space Science,Institute of Space Technology,Islamabad 44000,Pakistan [2]University of Wah,Quaid Avenue,Wah Cantt 47040,Punjab,Pakistan [3]Department of Civil Engineering,College of Engineering,Taif University,PO Box 11099,Taif 21974,Saudi Arabia

出　　处：《Communications in Theoretical Physics》2025年第3期85-93,共9页理论物理通讯(英文版)

基　　金：funded by Taif University,Saudi Arabia,Project No.(TU-DSPP-2024-33)。

摘　　要：Theβ-decay properties of^(67-80)As nuclei have been investigated within the framework of the proton-neutron quasi-particle random phase approximation(pn-QRPA)model.The nuclear deformation obtained from the finite range droplet model is used as an input parameter in the pn-QRPA model for the analysis ofβ-decay properties including Gamow-Teller strength distributions,log ft,β-decay half-lives and stellarβ^(±)decay rates.The predicted log ft values were fairly consistent with the observed data.The computedβ-decay half-lives matched the measured values by a factor of 10.The stellar rates were compared with the shell model outcomes.At high densities and temperatures,theβ^(+)and electron capture rates had a finite contribution.However,theβ^(-)and positron capture rates are only significant at high temperatures and low densities.The pn-QRPA rates outperformed the shell model rates by a factor of 22 or more.

关 键 词：pn-QRPA β-decay properties GT strength distribution log ft stellar rates 

分 类 号：O57[理学—粒子物理与原子核物理]