Abstract
The cross section σ(Eν) for solar-neutrino capture by the 76Ge nucleus is calculated. The effect of Gamow-Teller resonances on the rate of neutrino capture in the reaction 76Ge (ν, e−)76 As is studied. It is shown that the contribution of high-lying Gamow-Teller resonances to the charge-exchange strength function increases the rate of solar-neutrino capture by 25% to 50%, depending on the normalization method and on the inclusion of the quenching effect.
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Acknowledgments
We are grateful to Professors J. Suhonen, D. Frekers, and M. Fujiwara for stimulating discussions and consultations.
Funding
This work was supported by Russian Foundation for Basic Research (project no. 18-02-00670) and by the state assignment of the Ministry of Education and Science of the Russian Federation (no. 3.3008.2017/PP).
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Russian Text © The Author (s), 2019, published in Yadernaya Fizika, 2019, Vol. 82, No. 5, pp. 397–402.
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Vyborov, A.K., Inzhechik, L.V., Koroteev, G.A. et al. Cross Sections for Solar-Neutrino Capture by the 76Ge Nucleus and High-Lying Gamow—Teller Resonances. Phys. Atom. Nuclei 82, 477–482 (2019). https://doi.org/10.1134/S1063778819050132
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DOI: https://doi.org/10.1134/S1063778819050132