Studying Kaon-pion S-wave scattering in K-matrix formalism
| dc.creator | Li, Long | |
| dc.creator | Zou, Bing-song | |
| dc.creator | Li, Guang-lie | |
| dc.date | 2002-11-03 | |
| dc.date.accessioned | 2026-07-07T10:33:10Z | |
| dc.date.available | 2026-07-07T10:33:10Z | |
| dc.description | We generalize our previous work on ππscattering to Kπscattering, and re-analyze the experiment data of Kπscattering below 1.6 GeV. Without any free parameter, we explain KπI=3/2 S-wave phase shift very well by using t-channel rho and u-channel K^* meson exchange. With the t-channel and u-channel meson exchange fixed as the background term, we fit the KπI=1/2 S-wave data of the LASS experiment quite well by introducing one or two s-channel resonances. It is found that there is only one s-channel resonance between Kπthreshold and 1.6 GeV, i.e., K_0^*(1430) with a mass around 1438~1486 MeV and a width about 346 MeV, while the t-channel rho exchange gives a pole at (450-480i) MeV for the amplitude. | |
| dc.description | REVTeX4 file, 11 pages and 3 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0211026 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0211026 | |
| dc.identifier | Phys.Rev.D67:034025,2003 | |
| dc.identifier | doi:10.1103/PhysRevD.67.034025 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/179014 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Studying Kaon-pion S-wave scattering in K-matrix formalism | |
| dc.type | text |