dorsal/arxiv
View SchemaCharge-Dependence of the Nucleon-Nucleon Interaction
| Authors | G. Q. Li, R. Machleidt |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9807080 |
| URL | https://arxiv.org/abs/nucl-th/9807080 |
| DOI | 10.1103/PhysRevC.58.3153 |
| Journal | Phys.Rev.C58:3153-3162,1998 |
Abstract
Based upon the Bonn meson-exchange-model for the nucleon-nucleon ($NN$) interaction, we calculate the charge-independence breaking (CIB) of the $NN$ interaction due to pion-mass splitting. Besides the one-pion-exchange (OPE), we take into account the $2\pi$-exchange model and contributions from three and four irreducible pion exchanges. We calculate the CIB differences in the $^1S_0$ effective range parameters as well as phase shift differences for partial waves up to total angular momentum J=4 and laboratory energies below 300 MeV. We find that the CIB effect from OPE dominates in all partial waves. However, the CIB effects from the $2\pi$ model are noticable up to D-waves and amount to about 40% of the OPE CIB-contribution in some partial waves, at 300 MeV. The effects from 3$\pi$ and 4$\pi$ contributions are negligible except in $^1S_0$ and $^3P_2$.
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"abstract": "Based upon the Bonn meson-exchange-model for the nucleon-nucleon ($NN$)\ninteraction, we calculate the charge-independence breaking (CIB) of the $NN$\ninteraction due to pion-mass splitting. Besides the one-pion-exchange (OPE), we\ntake into account the $2\\pi$-exchange model and contributions from three and\nfour irreducible pion exchanges. We calculate the CIB differences in the\n$^1S_0$ effective range parameters as well as phase shift differences for\npartial waves up to total angular momentum J=4 and laboratory energies below\n300 MeV. We find that the CIB effect from OPE dominates in all partial waves.\nHowever, the CIB effects from the $2\\pi$ model are noticable up to D-waves and\namount to about 40% of the OPE CIB-contribution in some partial waves, at 300\nMeV. The effects from 3$\\pi$ and 4$\\pi$ contributions are negligible except in\n$^1S_0$ and $^3P_2$.",
"arxiv_id": "nucl-th/9807080",
"authors": [
"G. Q. Li",
"R. Machleidt"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.58.3153",
"journal_ref": "Phys.Rev.C58:3153-3162,1998",
"title": "Charge-Dependence of the Nucleon-Nucleon Interaction",
"url": "https://arxiv.org/abs/nucl-th/9807080"
},
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