dorsal/arxiv
View SchemaThe $qqqq\bar q$ components and hidden flavor contributions to the baryon magnetic moments
| Authors | C. S. an, Q. B. Li, D. O. Riska, B. S. Zou |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0610009 |
| URL | https://arxiv.org/abs/nucl-th/0610009 |
| DOI | 10.1103/PhysRevC.74.055205 10.1103/PhysRevC.75.069901 |
| Journal | Phys.Rev.C74:055205,2006; Erratum-ibid.C75:069901,2007 |
Abstract
The contributions from the $qqqq\bar q$ components to the magnetic moments of the octet as well as the $\Delta^{++}$ and $\Omega^-$ decuplet baryons are calculated for the configurations that are expected to have the lowest energy if the hyperfine interaction depends both on spin and flavor. The contributions from the $u\bar u$, $d\bar d$ and $s\bar s$ components are given separately. It is shown that addition of $qqqq\bar q$ admixtures to the ground state baryons can improve the overall description of the magnetic moments of the baryon octet and decuplet in the quark model without SU(3) flavor symmetry breaking, beyond that of the different constituent masses of the strange and light-flavor quarks. The explicit flavor (and spin) wave functions for all the possible configurations of the $qqqq\bar q$ components with light and strange $q\bar q$ pairs are given for the baryon and octet and decuplet. Admixtures of ~ 10% of the $qqqq\bar q$ configuration where the flavor-spin symmetry is $[4]_{FS}[22]_F[22]_S$, which is likely to have the lowest energy, in particular reduces the deviation from the empirical values of the magnetic moments of the $\Sigma^ -$ and the $\Xi^0$ compared with the quark model.
{
"annotation_id": "2dce0283-873d-4403-8ab6-3e880acfe5d6",
"date_created": "2026-03-02T18:00:08.653000Z",
"date_modified": "2026-03-02T18:00:08.653000Z",
"file_hash": "adc21e6d26bd1277c676bded4681357f2b2f2697c4fc2f8b3561bac4971ef091",
"private": false,
"record": {
"abstract": "The contributions from the $qqqq\\bar q$ components to the magnetic moments of\nthe octet as well as the $\\Delta^{++}$ and $\\Omega^-$ decuplet baryons are\ncalculated for the configurations that are expected to have the lowest energy\nif the hyperfine interaction depends both on spin and flavor. The contributions\nfrom the $u\\bar u$, $d\\bar d$ and $s\\bar s$ components are given separately. It\nis shown that addition of $qqqq\\bar q$ admixtures to the ground state baryons\ncan improve the overall description of the magnetic moments of the baryon octet\nand decuplet in the quark model without SU(3) flavor symmetry breaking, beyond\nthat of the different constituent masses of the strange and light-flavor\nquarks. The explicit flavor (and spin) wave functions for all the possible\nconfigurations of the $qqqq\\bar q$ components with light and strange $q\\bar q$\npairs are given for the baryon and octet and decuplet. Admixtures of ~ 10% of\nthe $qqqq\\bar q$ configuration where the flavor-spin symmetry is\n$[4]_{FS}[22]_F[22]_S$, which is likely to have the lowest energy, in\nparticular reduces the deviation from the empirical values of the magnetic\nmoments of the $\\Sigma^ -$ and the $\\Xi^0$ compared with the quark model.",
"arxiv_id": "nucl-th/0610009",
"authors": [
"C. S. an",
"Q. B. Li",
"D. O. Riska",
"B. S. Zou"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.74.055205 10.1103/PhysRevC.75.069901",
"journal_ref": "Phys.Rev.C74:055205,2006; Erratum-ibid.C75:069901,2007",
"title": "The $qqqq\\bar q$ components and hidden flavor contributions to the baryon magnetic moments",
"url": "https://arxiv.org/abs/nucl-th/0610009"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "066058cf-09a9-4a16-8fa8-01cbf95ea712",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}