Re-analysis of temperature dependent neutron capture rates and stellarβ-decay rates of^(95-98)Mo  

作　　者：Abdul Kabir Jameel-Un Nabi Muhammad Tahir Abdul Muneem Zain Ul Abideen 

机构地区：[1]Space and Astrophysics Research lab,National Centre of GIS and Space Applications,Department of Space Science,Institute of Space Technology,Islamabad 44000,Pakistan [2]University of Wah,Quaid Avenue,Wah Cantt 47040,Punjab,Pakistan [3]Faculty of Engineering Sciences,GIK Institute of Engineering Sciences and Technology,Topi 23640,Khyber Pakhtunkhwa,Pakistan

出　　处：《Chinese Physics C》2024年第9期142-149,共8页中国物理C（英文版）

摘　　要：The neutron capture rates and temperature dependent stellar beta decay rates of Mo isotopes are investigated within the framework of the statistical code TALYS v1.96 and the proton neutron quasi particle random phase approximation(pn-QRPA)model.The Maxwellian average cross-section(MACS)and neutron capture rates for the^(95-98)Mo(n,γ)^(96-99)Mo radiative capture process are analyzed within the framework of the statistical code TALYS v1.96 based on the phenomenological nuclear level density model and gamma strength functions.The present model-based computations for the MACS are comparable to the existing measured data.The sensitivity of stellar weak interaction rates to various densities and temperatures is investigated within the framework of the pn-QRPA model.Particular attention is paid to the impact of thermally filled excited states in the decaying nuclei(^(95-98)Mo)on electron emission and positron capture rates.Furthermore,we compare the neutron capture rates and stellar beta decay rates.It is found that neutron capture rates are higher than stellar beta decay rates at both lower and higher temperatures.

关 键 词：CROSS-SECTION TALYS nuclear level density decay rates capture rates 

分 类 号：O572.2[理学—粒子物理与原子核物理]