dorsal/arxiv
View SchemaTwice-iterated boson-exchange scattering amplitudes
| Authors | N. Kaiser |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0606016 |
| URL | https://arxiv.org/abs/nucl-th/0606016 |
| DOI | 10.1103/PhysRevC.74.014002 |
| Journal | Phys.Rev. C74 (2006) 014002 |
Abstract
We calculate at two-loop order the complex-valued scattering amplitude related to the twice-iterated scalar-isovector boson-exchange between nucleons. In comparison to the once-iterated boson-exchange amplitude it shows less dependence on the scattering angle. We calculate also the iteration of the (static) irreducible one-loop potential with the one-boson exchange and find similar features. Together with the irreducible three-boson exchange potentials and the two-boson exchange potentials with vertex corrections, which are also evaluated analytically, our results comprise all nonrelativistic contributions from scalar-isovector boson-exchange at one- and two-loop order. The applied methods can be straightforwardly adopted to the pseudoscalar pion with its spin- and momentum-dependent couplings to the nucleon.
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"abstract": "We calculate at two-loop order the complex-valued scattering amplitude\nrelated to the twice-iterated scalar-isovector boson-exchange between nucleons.\nIn comparison to the once-iterated boson-exchange amplitude it shows less\ndependence on the scattering angle. We calculate also the iteration of the\n(static) irreducible one-loop potential with the one-boson exchange and find\nsimilar features. Together with the irreducible three-boson exchange potentials\nand the two-boson exchange potentials with vertex corrections, which are also\nevaluated analytically, our results comprise all nonrelativistic contributions\nfrom scalar-isovector boson-exchange at one- and two-loop order. The applied\nmethods can be straightforwardly adopted to the pseudoscalar pion with its\nspin- and momentum-dependent couplings to the nucleon.",
"arxiv_id": "nucl-th/0606016",
"authors": [
"N. Kaiser"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.74.014002",
"journal_ref": "Phys.Rev. C74 (2006) 014002",
"title": "Twice-iterated boson-exchange scattering amplitudes",
"url": "https://arxiv.org/abs/nucl-th/0606016"
},
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