The strong nuclear long-range interaction, which manifests itself macroscopically in the optical spectra of solids differing by one neutron, was studied experimentally. The isotopic shift of the zero-phonon emission line of free excitons in the low-temperature optical spectra of LiD crystals, equal to 103 meV, is due to the hadron–lepton interaction. It is shown that the strong nuclear long-range interaction energy depends on the internucleon distance in a deuterium nucleus.
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Translated from Atomnaya Énergiya, Vol. 131, No. 3, pp. 123–128, September, 2021.
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Plekhanov, V.G. Isotopic Effect – Macroscopic Manifestation of the Strong Nuclear Long-Range Interaction. At Energy 131, 121–126 (2022). https://doi.org/10.1007/s10512-022-00851-x
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DOI: https://doi.org/10.1007/s10512-022-00851-x