The K0 SK0 S final state in two-photon collisions and SU(3) tensor nonets

  • V. A. Schegelsky
  • A. V. Sarantsev
  • V. A. Nikonov
  • A. V. Anisovich
Hadron Physics


The K0 SK0 S final state in two-photon collisions is studied with the L3 experiment at LEP, using orbital angular momentum operators. The mass spectrum is dominated by the formation of tensor mesons, their two-photon partial width are determined. A signal at 1700-1800MeV is found to be a new tensor state f 2(1750) with mass M = (1755±10)MeV and width Γ = (67±12)MeV. All observed tensor resonances obey SU(3) relations. The f 2(1750) state forms a second tensor nonet together with f 2(1560) and a 2(1700). The SU(3) analysis allows us to determine with good accuracy mixing angles between nonstrange and strange components of the isoscalar members of tensor nonets.


11.80.Et Partial-wave analysis 13.60.Le Meson production 13.25.-k Hadronic decays of mesons 14.40.-n Mesons 


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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2006

Authors and Affiliations

  • V. A. Schegelsky
    • 1
  • A. V. Sarantsev
    • 1
  • V. A. Nikonov
    • 1
  • A. V. Anisovich
    • 1
  1. 1.Petersburg Nuclear Physics InstituteGatchinaRussia

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