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Nuclear Resonances and the Interaction between Neutrinos and a Ga–Ge System

Abstract

Calculations are presented for cross section σ(Eν) of solar neutrino capture by 71Ga nuclei. The calculations are based on experimental data on force function S(E) obtained in charge-exchange reactions 71Ga(p, n)71Ge and 71Ga(3He, t)71Ge. Charge-exchange force function S(E) for 71Ga is calculated using the self-consistent theory of finite Fermi systems. The effect the resonance structure of S(E) has on calculated cross section σ(Eν) is studied. It is shown that the resonance part adds about 5% to the rate of the reaction estimated with only discrete states.

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ACKNOWLEDGMENTS

The authors thank I.N. Borzov, A.K. Vyborov, L.V. Inzhechik, S.V. Semenov, S.V. Fomichev, I.V. Panov, and V.V. Khrushchev for their assistance in this work and participation in discussing its results.

Funding

This work was supported by the Russian Foundation for Basic Research, project no. 18-02-00670; and by the Moscow Institute of Physics and Technology, as part of the program 5top100.

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Correspondence to A. N. Fazliakhmetov.

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Translated by I. Obrezanova

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Koroteev, G.A., Klochkova, N.V., Osipenko, A.P. et al. Nuclear Resonances and the Interaction between Neutrinos and a Ga–Ge System. Bull. Russ. Acad. Sci. Phys. 84, 898–901 (2020). https://doi.org/10.3103/S1062873820080195

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