Tensor meson contribution to the Lamb shift and hyperfine splitting in muonic hydrogenстатья
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Дата последнего поиска статьи во внешних источниках: 8 апреля 2021 г.
Аннотация:We calculate the tensor meson exchange contribution to the interaction operator ofmuon and proton, which is determined by the tensor meson coupling with two photon state. Forthe construction of transition form factor T to gg we use the monopole parametrization overphoton four-momenta and experimental data on the decay width Γ_Tgg. It is shown that tensormeson f2(1270) exchange gives essential contribution to the Lamb shift in muonic hydrogenΔELs(2P-2S) which should be taken into account for a comparison with precise experimentaldata.