Re-analysis of temperature dependent neutron capture rates and stellar β-decay rates of 95-98Mo

被引:2
作者
Kabir, Abdul [1 ]
Nabi, Jameel-Un [2 ]
Tahir, Muhammad [2 ]
Muneem, Abdul [3 ]
Abideen, Zain Ul [1 ]
机构
[1] Inst Space Technol, Natl Ctr GIS & Space Applicat, Dept Space Sci, Space & Astrophys Res lab, Islamabad 44000, Pakistan
[2] Univ Wah, Quaid Ave, Wah Cantt 47040, Punjab, Pakistan
[3] GIK Inst Engn Sci & Technol, Fac Engn Sci, Topi 23640, Khyber Pakhtunk, Pakistan
关键词
cross-section; TALYS; nuclear level density; decay rates; capture rates; WEAK INTERACTION RATES; QUASI-PARTICLE RPA; S-PROCESS; MICROSCOPIC PREDICTIONS; RADIATIVE-CAPTURE; CROSS-SECTIONS; HALF-LIVES; PROTON; NUCLEI; REGION;
D O I
10.1088/1674-1137/ad5428
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
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 Mo95-98(n,gamma)Mo96-99 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 (Mo95-98) 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.
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页数:8
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