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18 January 2022
  » arxiv » hep-ph/0302137

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D^+_s -> pi^+ pi^+ pi^- decay: the 1^3P_0 s anti-s component in scalar-isoscalar mesons
V.V. Anisovich ; L.G Dakhno ; V.A. Nikonov ;
Date 17 Feb 2003
Journal Phys.Atom.Nucl. 67 (2004) 1571-1579; Yad.Fiz. 67 (2004) 1593-1601
Subject hep-ph
AbstractOn the basis of data on the decay D^+_s -> pi^+ pi^+ pi^-, which goes dominantly via the transition D_s -> pi^+ s anti-s, we evaluate the 1^3P_0 s anti-s components in the scalar-isoscalar resonances f0(980), f0(1300), f0(1500) and broad state f0(1200-1600)$. The data point to a large s anti-s component in the f0(980): 40% < s anti-s < 70%. Nearly 30% of the 1^3P_0 s anti-s component flows to the mass region 1300-1500 MeV being shared by f0(1300), f0(1500) and broad state f0(1200-1600): the interference of these states results in a peak near 1400 MeV with the width around 200 MeV.
Source arXiv, hep-ph/0302137
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