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Coulomb corrections for the nonflip and spin-flip electromagnetic p↑A amplitudes

A. A. Poblaguev

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Phys. Rev. D 113, 056027 – Published 27 March, 2026

DOI: https://doi.org/10.1103/jm5c-28mw

Abstract

It is demonstrated that, within the eikonal approach, the Coulomb corrections to the elastic electromagnetic nonflip and spin-flip proton-nucleus amplitudes are identical when the two amplitudes share the same exponential form factors. This result allows Coulomb corrections to be computed numerically, and with high precision, for both electromagnetic and hadronic elastic p↑A amplitudes in the massless-photon limit, including the effects of soft magnetic photon exchange. The method relies on analytical expressions and numerical integrations over a finite impact-parameter range with nonsingular integrands, providing a practical and systematically controlled framework for phenomenological applications.

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See Also

Numerical calculation of Coulomb corrections in forward elastic p↑p and p↑A scattering

A. A. Poblaguev
Phys. Rev. D 112, 016023 (2025)

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References (5)

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Phys. Rev. D 113, 056027– Published 27 March, 2026
  • Received 10 February 2026
  • Accepted 12 March 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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