Research Article
Year 2025,
Volume: 46 Issue: 3, 601 - 603, 30.09.2025
Abstract
This paper presents a re-analysis of neutron capture and stellar weak interaction rates of 97Mo under astrophysical conditions. The Maxwellian-averaged cross sections (MACS), neutron capture rates, and β^- decay/positron capture rates are investigated employing the TALYS v1.96 nuclear reaction code and the pn-QRPA model, respectively. We conclude that neutron capture dominates over β^- decay at high stellar temperatures for s-process conditions. The calculated MACS values are consistent with the experimental data. The results shown are important for s-process nucleosynthesis modelling.
References
- [1] Burbidge E.M., Burbidge G.R., Fowler W.A., Hoyle F., Synthesis of the Elements in Stars, Rev. Mod. Phys. 29 (1957). 547-650.
- [2] Käppeler F., Gallino R., Busso M., Picchio G., Raiteri C.M., s-Process Nucleosynthesis: Classical Approach and Asymptotic Giant Branch Models for Low-Mass Stars, Astrophys. J. 354 (1990) 630-643.
- [3] Bisterzo S., Gallino R., Käppeler F., Wiescher M., Imbriani G., Straniero O., Cristallo S., Görres J., DeBoer R.J., Mont. Not. Roy. Astron. Soc. 449 (2015) 506-527.
- [4] Muto K., Bender E., Oda T., Klapdor-Kleingrothaus H.V., Proton-neutron Quasiparticle RPA with Separable Gamow-Teller Forces, Z. Phys. A 341 (1992) 407-415.
- [5] Koning A.J., Hilaire S., Goriely S., TALYS 1.6. A nuclear reaction program (2013).
- [6] Engel J., Bender M., Dobaczewski J., Nazarewicz W., Surman R., 𝛽 Decay Rates of r-Process Waiting-point Nuclei in a Self-consistent Approach Phys. Rev. C 60 (1999) 014302.
- [7] Hirsch M., Staudt A., Muto K., Klapdor-Kleingrothaus H.V., Microscopic Predictions of β+/EC-decay Half-lives, At. Data Nucl. Data Tables 53 (1993) 165-193.
- [8] Homma H., Bender E., Hirsch M., Muto K., Klapdor-Kleingrothaus H.V., Oda T., Systematic Study of Nuclear β Deacy, Phys. Rev. C 54 (1996) 2972-2985.
- [9] Nabi J.-U., Klapdor-Kleingrothaus H.V., Microscopic Calculations of Stellar Weak Interaction Rates and Energy Losses for fp- and fpg-Shell Nuclei, At. Data Nucl. Data Tables 88 (2004) 237-476.
- [10] Hauser W., Feshbach H., The Inelastic Scattering of Neutrons, Phys. Rev. 87 (1952) 366-373.
- [11] Rochman D., Goriely S., Koning A.J., Ferroukhi H., Radiative Neutron Capture: Hauser Feshbach vs. Statistical Resonances, Phys. Lett. B 764 (2017) 109-113.
- [12] Winters R.R., Macklin R.L., Maxwellian-Averaged Neutron Capture Cross Sections for 96Tc and 95-98Mo, Astrophys. J. 313 (1987) 808-812.
- [13] Kabir A., Nabi J.-U., Tahir M., Muneem A., Abideen Z.U., Re-analysis of temperature dependent neutron capture rates and stellar β-decay rates of 95-98Mo, Chin. Phys. C 48 (2024) 094101.
There are 13 citations in total.
Details
| Primary Language | English |
|---|---|
| Subjects | Astroparticle Physics and Particle Cosmology |
| Journal Section | Natural Sciences |
| Authors | |
| Publication Date | September 30, 2025 |
| Submission Date | July 21, 2025 |
| Acceptance Date | September 1, 2025 |
| Published in Issue | Year 2025 Volume: 46 Issue: 3 |
