Pi Pi Scattering and Scalar Mesons in an Effective Chiral Lagrangian
| dc.creator | Harada, Masayasu | |
| dc.date | 2000-09-05 | |
| dc.date.accessioned | 2026-07-07T03:42:30Z | |
| dc.date.available | 2026-07-07T03:42:30Z | |
| dc.description | In this talk I summarize recently proposed mechanisms to understand pi pi scattering to 1 GeV in an effective chiral Lagrangian. The Lagrangian includes higher resonances in addition to pions consistently with the chiral symmetry. Iso-spin zero S-wave partial wave amplitude is reproduced up till about 1.2 GeV by including a pion self-interaction and resonant pole exchanges of rho, f0(980) and sigma derived from the effective chiral Lagrangian. The best fit shows that sigma has a mass of around 560 MeV and a width of about 370 MeV. | |
| dc.description | 6 pages, 2 figures, Talk given at YITP workshop ``Possible existence of the sigma-meson and its implications to hadron physics'' (June 12--14, 2000, Kyoto) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0009051 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0009051 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/39919 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Pi Pi Scattering and Scalar Mesons in an Effective Chiral Lagrangian | |
| dc.type | text |