https://doi.org/10.1140/epja/s10050-023-01035-2
Regular Article - Theoretical Physics
On cancellation of non-adiabatic and off-shell effects in the antiproton annihilation in deuteron
1
MEPhI, National Research Nuclear University, Kashirskoe Highway 31, 115409, Moscow, Russia
2
Nuclear Physics and Astrophysics Division, Lebedev Physical Institute, Leninsky Prospect 53, 119991, Moscow, Russia
Received:
3
February
2023
Accepted:
15
May
2023
Published online:
9
June
2023
As known, some approximate approaches to the hadron scattering from nuclei work rather well far beyond the limits of their applicability. This was explained by cancellation of the contributions (non-adiabatic and off-shell effects) omitted in these approaches. Moreover, in some cases (in particular, for the reaction 
) this cancellation allowed to derive rather simple analytical formula for the reaction amplitude. Solving the Faddeev equations, we confirm numerically this formula and, hence, the cancellations.
O. D. Dalkarov, V. A. Karmanov and E. A. Kupriyanova contributed equally to this work.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
