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Electromagnetic Corrections to the One-Pion-Exchange Potential
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abstract
Leading-order electromagnetic loop corrections to the one-pion-exchange potential are computed within the framework of chiral perturbation theory. These corrections generate an effective nucleon-nucleon potential, $V_{\pi \gamma}$, which supplements the sum of OPEP and the nucleon-nucleon Coulomb potential. This potential is charge dependent and its construction is demonstrated to be gauge invariant. The potential $V_{\pi \gamma}$ has been included in the Nijmegen partial-wave analysis of np data. A particular renormalization scheme is chosen that leads to a negligible change in the charged-piNN coupling constant and in the np 1S0 scattering length and effective range.
Forward citations
Cited by 2 Pith papers
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Chiral $3\pi$-exchange potential using the method of unitary transformation
The leading three-pion exchange nucleon-nucleon potential is scheme dependent, and this paper provides the version consistent with the method of unitary transformation, which differs from Kaiser's S-matrix results for...
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Charge dependent nucleon-nucleon potentials in covariant chiral effective field theory
The authors construct charge-dependent nucleon-nucleon potentials up to NNLO in covariant chiral effective field theory and fit their parameters to PWA93 phase shifts.
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