The K0 SK0 S final state in two-photon collisions and SU(3) tensor nonets
Petersburg Nuclear Physics Institute, Gatchina, Russia
Accepted: 23 February 2006
Published online: 31 March 2006
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.
PACS: 11.80.Et Partial-wave analysis – / 13.60.Le Meson production – / 13.25.-k Hadronic decays of mesons – / 14.40.-n Mesons –
© Società Italiana di Fisica and Springer-Verlag, 2006