dorsal/arxiv
View SchemaComment on "Determination of the chiral coupling constants c_3 and c_4 in new pp and np partial-wave analyses"
| Authors | D. R. Entem, R. Machleidt |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0303017 |
| URL | https://arxiv.org/abs/nucl-th/0303017 |
Abstract
In a recent study [M.C.M. Rentmeester et al., Phys. Rev. C 67, 044001 (2003)], the Nijmegen group reports on the determination of the chiral low-energy constants (LEC), c_3 and c_4, involved in the 2-pi-exchange part of the NN amplitude at next-to-next-to-leading order (NNLO) of chiral perturbation theory. This analysis does not apply the uniquely-determined and model-independent NN amplitudes at NNLO and uses, instead, amplitudes that are up 90% smaller. We point out that this flaw produces a large systematic error, rendering the Nijmegen method unsuitable for a reliable determination of the LEC.
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"date_created": "2026-03-02T17:59:57.815000Z",
"date_modified": "2026-03-02T17:59:57.815000Z",
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"abstract": "In a recent study [M.C.M. Rentmeester et al., Phys. Rev. C 67, 044001\n(2003)], the Nijmegen group reports on the determination of the chiral\nlow-energy constants (LEC), c_3 and c_4, involved in the 2-pi-exchange part of\nthe NN amplitude at next-to-next-to-leading order (NNLO) of chiral perturbation\ntheory. This analysis does not apply the uniquely-determined and\nmodel-independent NN amplitudes at NNLO and uses, instead, amplitudes that are\nup 90% smaller. We point out that this flaw produces a large systematic error,\nrendering the Nijmegen method unsuitable for a reliable determination of the\nLEC.",
"arxiv_id": "nucl-th/0303017",
"authors": [
"D. R. Entem",
"R. Machleidt"
],
"categories": [
"nucl-th",
"nucl-ex"
],
"title": "Comment on \"Determination of the chiral coupling constants c_3 and c_4 in new pp and np partial-wave analyses\"",
"url": "https://arxiv.org/abs/nucl-th/0303017"
},
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"variant": "snapshot-2026-03-01",
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