Behaviour of S-Wave poles Near Threshold and the Scalar Meson Nonet Below 1 GeV
| dc.creator | van Beveren, Eef | |
| dc.creator | Rupp, George | |
| dc.date | 2002-07-01 | |
| dc.date | 2002-07-03 | |
| dc.date.accessioned | 2026-07-07T03:47:21Z | |
| dc.date.available | 2026-07-07T03:47:21Z | |
| dc.description | We describe the behaviour at threshold of S-wave poles of the scattering matrix within a four-parameter model for non-exotic meson-meson scattering. This model accommodates all non-exotic mesons, hence also the light scalar mesons, as resonances and bound states characterised by complex singularities of the scattering amplitude as a function of the total invariant mass. The majority of the full S-matrix mesonic poles stem from an underlying confinement spectrum. However, the light scalar mesons K0*(830), a0(980), f0(400--1200), and f0(980) do not, but instead originate in 3P0-barrier semi-bound states. We show that the behaviour of the corresponding poles is identical at threshold. | |
| dc.description | 13 pages plain LaTeX, Contribution to 31st Int. Conf. on High Energy Physics, Amsterdam 24-31 July 2002; v2: acknowledgement and citation added | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0207022 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0207022 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/41634 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Behaviour of S-Wave poles Near Threshold and the Scalar Meson Nonet Below 1 GeV | |
| dc.type | text |