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, Vπγ, which supplements the sum of one-pion-exchange potential and the nucleon-nucleon Coulomb potential. This potential is charge dependent and its construction is demonstrated to be gauge invariant. The potential Vπγ 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 π±NN coupling constant and in the np 1S0 scattering length and effective range.
Original language | English (US) |
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Pages (from-to) | 4386-4389 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 80 |
Issue number | 20 |
DOIs | |
State | Published - 1998 |
ASJC Scopus subject areas
- Physics and Astronomy(all)