Is the $σ$ meson dynamically generated?
| dc.creator | Guo, Zhi-hui | |
| dc.creator | Xiao, L. Y. | |
| dc.creator | Zheng, H. Q. | |
| dc.date | 2006-11-01 | |
| dc.date.accessioned | 2026-07-07T10:25:53Z | |
| dc.date.available | 2026-07-07T10:25:53Z | |
| dc.description | We study the problem whether the $σ$ meson is generated `dynamically'. A pedagogical analysis on the toy O(N) linear sigma model is performed and we find that the large $N_c$ limit and the $m_σ\to \infty$ limit does not commute. The sigma meson may not necessarily be described as a dynamically generated resonance. On the contrary, the sigma meson may be more appropriately described by considering it as an explicit degree of freedom in the effective lagrangian. | |
| dc.description | Contribution to ``Quark Confinement and Hadron Spectrum VII'', 2--7 Sept. 2006, Ponta Delgada, Acores, Portugal | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0611007 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0611007 | |
| dc.identifier | AIPConf.Proc.892:308-311,2007 | |
| dc.identifier | doi:10.1063/1.2714402 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/176691 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Is the $σ$ meson dynamically generated? | |
| dc.type | text |