Forward dispersion relations and Roy equations in pi-pi scattering
| dc.creator | Kaminski, R. | |
| dc.creator | Pelaez, J. R. | |
| dc.creator | Yndurain, F. J. | |
| dc.date | 2006-10-24 | |
| dc.date.accessioned | 2026-07-07T10:42:07Z | |
| dc.date.available | 2026-07-07T10:42:07Z | |
| dc.description | We review results of an analysis of pipi interactions in S, P and D waves for two-pion effective mass from threshold to about 1.4 GeV. In particular we show a recent improvement of this analysis above the K anti-K threshold using more data for phase shifts and including the S0 wave inelasticity from pipi -> K anti-K. In addition, we have improved the fit to the f2(1270) resonance and used a more flexible P wave parametrization above the K anti-K threshold and included an estimation of the D2 wave inelasticity. The better accuracy thus achieved also required a refinement of the Regge analysis above 1.42 GeV. We have checked that the pipi scattering amplitudes obtained in this approach satisfy remarkably well forward dispersion relations and Roy's equations. | |
| dc.description | 6 pages, invited talk to the IV International Conference on Quarks and Nuclear Physics QNP06, Madrid 5th-10th June 2006 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610315 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610315 | |
| dc.identifier | Eur.Phys.J.A31:479-484,2007 | |
| dc.identifier | doi:10.1140/epja/i2007-10006-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181837 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Forward dispersion relations and Roy equations in pi-pi scattering | |
| dc.type | text |