Electromagnetic Corrections to the One-Pion-Exchange Potential
Journal Article
·
· Physical Review Letters
- Department of Physics, University of Washington, Seattle, Washington 98195-1560 (United States)
- Department of Physics, The Flinders University of South Australia, Bedford Park, SA 5042 (Australia)
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550 (United States)
- Institute for Theoretical Physics, University of Nijmegen, Nijmegen (The Netherlands)
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{sub {pi}{gamma}} , 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 V{sub {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 {pi}{sup {plus_minus}}NN coupling constant and in the np {sup 1}S{sub 0} scattering length and effective range. {copyright} {ital 1998} {ital The American Physical Society}
- OSTI ID:
- 610752
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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