Chiral Expansion at Energy Scale of $ρ$-Mass
| dc.creator | Wang, Xiao-Jun | |
| dc.creator | Yan, Mu-Lin | |
| dc.date | 2000-01-17 | |
| dc.date | 2000-11-24 | |
| dc.date.accessioned | 2026-07-07T03:40:35Z | |
| dc.date.available | 2026-07-07T03:40:35Z | |
| dc.description | We study chiral expansion at $m_ρ$-scale in framework of chiral constituent quark model. The lowest vector meson resonsances are treated as composited fields of constituent quarks. We illustrate that, at energy scale of $ρ$-meson mass, the chiral expansion expansion converges slowly. Therefore, it is possible to construct a well-defined chiral effective field theory at this energy scale, but high order correction of chiral expansion must be included simultanously. The one-loop correction of pseudoscalar mesons is also studied systematically. The unitarity of the model is examined and Breit-Wigner formula for $ρ$-meson is obtained. The prediction on on-shell $ρ\toππ$ and $ρ\to e^+e^-$ decays agree with data very well. | |
| dc.description | revtex file, 23 pages, 11 eps figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0001150 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0001150 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/39316 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Chiral Expansion at Energy Scale of $ρ$-Mass | |
| dc.type | text |