Observed D_s(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet

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dc.creatorvan Beveren, Eef
dc.creatorRupp, George
dc.date2003-05-05
dc.date2003-06-30
dc.date.accessioned2026-07-07T11:47:36Z
dc.date.available2026-07-07T11:47:36Z
dc.descriptionThe very recently observed D^*_{sJ}(2317)^+ meson is described as a quasi-bound scalar c\bar{s} state in a unitarized meson model, owing its existence to the strong ^3P_0 OZI-allowed coupling to the nearby S-wave DK threshold. By the same mechanism, a scalar D_0(2100-2300) resonance is predicted slightly above the Dπthreshold. These scalars are the charmed cousins of the light scalar nonet f_0(600), f_0(980), K^*_0(800), and a_0(980), reproduced by the same model. The standard c\bar{n} and c\bar{s} charmed scalars D_{0} and D_{s0}, cousins of the scalar nonet f_0(1370), f_0(1500), K_0^*(1430), and a_0(1450), are predicted to lie at about 2.64 and 2.79 GeV, respectively, both with a width of some 200 MeV.
dc.description6 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
dc.identifierhttps://arxiv.org/abs/hep-ph/0305035
dc.identifierhttp://arxiv.org/abs/hep-ph/0305035
dc.identifierPhys.Rev.Lett.91:012003,2003
dc.identifierdoi:10.1103/PhysRevLett.91.012003
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202630
dc.subjectHigh Energy Physics - Phenomenology
dc.titleObserved D_s(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet
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