On the scalar nonet lowest in mass

Abstract

The hypothesis that there exists a nonet of scalars mainly composed of a valence quark-antiquark pair and mixed according to near singlet-octet separation : f_0 (980) singlet, a_0^{+,0,-} (980), K^{* +,0}_0 (1430), \bar K^{* -,0}_0 (1430), f_0 (1500) octet, is put to further tests from the three body decays D^{\pm}, D_{s}^{\pm} -> PS^{\pm} pi^+ pi^- with PS^{\pm} = pi^{\pm}, K^{\pm}. The analysis of decay phases supports the singlet nature of f_0 (980).

Talk (by P.M.) given at the QCD 02 9th International High-Energy Physics Conference in QuantumChromoDynamics (Montpellier 2-9th July 2002), 4 pages

Cited by in corpus (13)

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• QCD Tests of the Puzzling Scalar Mesons
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• Gluonium nature of the sigma/f_0(600) from its coupling to KK
• sigma and f_0(980) substructures from gamma-gamma to pi-pi, J/psi, phi radiative and D_s semi-leptonic decays
• The sigma and f_0(980) from Ke4 + pi-pi scatterings data
• B decays into light scalar particles and glueball
• Light scalar mesons in QCD
• On nature of the scalar-isoscalar mesons in the uniformizing-variable method based on analyticity and unitarity
• A possible assignment for the ground scalar meson nonet
• Phase Motion in the Scalar Low-Mass pi+pi- Amplitude in D+ -> pi-pi+pi+ Decay
• Parameters of scalar resonances from the combined analysis of data on processes $\pi \pi \to \pi \pi ,K\bar{K},\eta \eta$ and $J/\psi$ decays
• Decay $\varphi (1020)\to \gamma f_0(980)$: analysis in the non-relativistic quark model approach