How we discovered the nonet of light scalar mesons
| dc.creator | van Beveren, Eef | |
| dc.creator | Rupp, George | |
| dc.date | 2007-10-16 | |
| dc.date | 2007-10-30 | |
| dc.date.accessioned | 2026-07-07T11:53:37Z | |
| dc.date.available | 2026-07-07T11:53:37Z | |
| dc.description | As has been confirmed meanwhile by lattice-QCD calculations (see e.g. hep-lat/0702023), the confinement spectrum of non-exotic quark-antiquark systems has its ground state for scalar mesons well above 1 GeV in the Resonance Spectrum Expansion (RSE). For instance, in the S-wave Kaon-pion RSE amplitude, a broad resonance was predicted slightly above 1.4 GeV [hep-ex/0106077], which is confirmed by experiment as the K*0(1430). However, a complete nonet of light scalar mesons was predicted (Zeit.Phys.C30,615 [http://www-spires.slac.stanford.edu/spires/find/hep?key=1573454]) as well, when a model strongly related to the RSE and initially developed to describe the heavy quarkonia resonance spectra (Phys.Rev.D21,772 [http://www-spires.slac.stanford.edu/spires/find/hep?key=363162]) was applied in the light-quark sector. Thus, it was found that the light scalar-meson nonet constitutes part of the ordinary meson spectrum, albeit represented by "extraordinary" [hep-ph/0701038] poles [hep-ex/0106077]. Similar resonances and bound states appear in the charmed sector [hep-ph/0305035], and are predicted in the B-meson spectrum [hep-ph/0312078, hep-ph/0406242]. A recent work [hep-ph/0703286] confirmed the presence of light scalar-meson poles in the RSE amplitude for S-wave and P-wave pion-pion and Kaon-pion contributions to three-body decay processes measured by the BES, E791 and FOCUS collaborations. | |
| dc.description | Contribution MENU2007 proceedings, 10 pages; Figures added | |
| dc.identifier | https://arxiv.org/abs/0710.3056 | |
| dc.identifier | http://arxiv.org/abs/0710.3056 | |
| dc.identifier | ECONFC070910:130,2007 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/204603 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | How we discovered the nonet of light scalar mesons | |
| dc.type | text |