2003/05/31 by Eef van Beveren, George Rupp · 1 citation
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1103/physrevlett.91.012003
published as Phys.Rev.Lett.91:012003,2003 · 6 pages, 2 figures included, plain LaTeX; PACS numbers 14.40.Lb, 13.25.Ft, 13.75.Lb, 12.40.Yx; v2: changes in text and title; v3: one reference added, one PACS number changed. Accepted for publication in Physical Review Letters
arxiv created 2003/06/30 · arxiv updated 2009/11/30
The very recently observed D^*sJ(2317)+ meson is described as a quasi-bound scalar cs state in a unitarized meson model, owing its existence to the strong 3P0 OZI-allowed coupling to the nearby S-wave DK threshold. By the same mechanism, a scalar D0(2100-2300) resonance is predicted slightly above the Dπthreshold. These scalars are the charmed cousins of the light scalar nonet f0(600), f0(980), K^*0(800), and a0(980), reproduced by the same model. The standard cn and cs charmed scalars D0 and Ds0, cousins of the scalar nonet f0(1370), f0(1500), K0^*(1430), and a0(1450), are predicted to lie at about 2.64 and 2.79 GeV, respectively, both with a width of some 200 MeV.