Abstract
Experimental values of the differential and total cross sections of elastic π0meson photo-production at helium were obtained in the photon-energy interval 160–240 MeV. The measured differential cross sections agree with the calculations based on the already developed theory of the relativistic momentum approximation in the bremsstrahlung energy range E γ ≤ 200 MeV. When corrections for the π0 meson interaction in the final state are introduced, one can obtain agreement with the available experimental data up to energies E γ ≤ 300 MeV. The experimental value of the amplitude ℱ +20 of π meson photoproduction at nucleons was found for 〈r〉 He = 1.4 F.
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Belousov, A.S., Rusakov, S.V., Tamm, E.I., Tatarinskaya, L.S., Tsarev, V.A., Shareiko, P.N. (1974). Photoproduction of π 0 Mesons at Helium and at Photon Energies of 160–240 MeV. In: Skobel’tsyn, D.V. (eds) Photomesic and Photonuclear Reactions and Investigation Methods with Synchrotrons. The Lebedev Physics Institute Series, vol 54. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-6175-7_2
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