dorsal/arxiv
View SchemaPion-photon exchange nucleon-nucleon potentials
| Authors | N. Kaiser |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0601099 |
| URL | https://arxiv.org/abs/nucl-th/0601099 |
| DOI | 10.1103/PhysRevC.73.044001 |
| Journal | Phys.Rev.C73:044001,2006 |
Abstract
We calculate in chiral perturbation theory the dominant next-to-leading order correction to the $\pi\gamma$-exchange NN-potential proportional to the large isovector magnetic moment $\kappa_v = 4.7$ of the nucleon. The corresponding spin-spin and tensor potentials $\widetilde V_{S,T}(r)$ in coordinate space have a very simple analytical form. At long distances $r \simeq 2$ fm these potentials are of similar size (but opposite in sign) as the leading order $\pi\gamma$-exchange potentials. We consider also effects from virtual $\Delta$-isobar excitation as well as other isospin-breaking contributions to the $2\pi$-exchange NN-potential induced by additional one-photon exchange.
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"abstract": "We calculate in chiral perturbation theory the dominant next-to-leading order\ncorrection to the $\\pi\\gamma$-exchange NN-potential proportional to the large\nisovector magnetic moment $\\kappa_v = 4.7$ of the nucleon. The corresponding\nspin-spin and tensor potentials $\\widetilde V_{S,T}(r)$ in coordinate space\nhave a very simple analytical form. At long distances $r \\simeq 2$ fm these\npotentials are of similar size (but opposite in sign) as the leading order\n$\\pi\\gamma$-exchange potentials. We consider also effects from virtual\n$\\Delta$-isobar excitation as well as other isospin-breaking contributions to\nthe $2\\pi$-exchange NN-potential induced by additional one-photon exchange.",
"arxiv_id": "nucl-th/0601099",
"authors": [
"N. Kaiser"
],
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"nucl-th"
],
"doi": "10.1103/PhysRevC.73.044001",
"journal_ref": "Phys.Rev.C73:044001,2006",
"title": "Pion-photon exchange nucleon-nucleon potentials",
"url": "https://arxiv.org/abs/nucl-th/0601099"
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