Abstract
A constraint \(g_{A}^{2}\leq 4.5\times10^{-24}\big(g^{2}+1/\lambda_{A}^{2}\big)\) on the constant gA of a new short-range (spin—orbit) interaction between nucleons, which is due to the exchange by a light spin-1 boson with the mass mA = ħ/λAc, has been obtained from experimental data on the transmission of neutrons through a noncentrosymmetric perfect crystal near the Bragg reflection characterized by the reciprocal lattice vector g. This constraint is the best in the interaction radius range λA = 10−12−10−5 m.
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Russian Text © The Author(s), 2020, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2020, Vol. 112, No. 10, pp. 639–643.
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This work was supported by the Russian Foundation for Basic Research (project no. 19-32-90202).
Translated by R. Tyapaev
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Voronin, V.V., Fedorov, V.V. & Shapiro, D.D. Constraint on a New Short-Range Spin—Orbit Interaction from Neutron Diffraction Data for a Noncentrosymmetric Crystal. Jetp Lett. 112, 597–601 (2020). https://doi.org/10.1134/S0021364020220142
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DOI: https://doi.org/10.1134/S0021364020220142