Baryon masses in a chiral expansion with meson-baryon form factors
| dc.creator | Stuckey, Richard E. | |
| dc.creator | Birse, Michael C. | |
| dc.date | 1996-02-14 | |
| dc.date.accessioned | 2026-07-07T10:58:15Z | |
| dc.date.available | 2026-07-07T10:58:15Z | |
| dc.description | The chiral expansion of the one-loop corrections to baryon masses is examined in a generic meson-cloud model with meson-baryon form factors. For pion loops, the expansion is rapidly convergent and at fourth order in $m_π$ accurately reproduces the full integral. In contrast, the expansion is found to converge very slowly for kaon loops, raising questions about the usefulness of chiral expansions for kaon-baryon physics. Despite the importance of high-order terms, relations like that of Gell-Mann and Okubo are well satisfied by the baryon masses calculated with the full integral. The pion cloud cloud makes a significant contribution to the $πN$ sigma commutator, while kaon cloud gives a very small strangeness content in the nucleon. | |
| dc.description | 20 pages (RevTeX), 2 figures (attached) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9602312 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9602312 | |
| dc.identifier | J.Phys.G23:29-40,1997 | |
| dc.identifier | doi:10.1088/0954-3899/23/1/003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/187032 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Baryon masses in a chiral expansion with meson-baryon form factors | |
| dc.type | text |