| Title: | RESONANCES IN ηπ+π- AND  FINAL STATES IN γγ COLLISIONS AT LEP |
| DOI No: | 10.1142/9789812777157_0055 |
| Source: | PHOTON 2001 (pp 274-278)
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| Author(s): | I. VODOPIANOV
Petersburg Nuclear Physics Institute, Orlova Roscha, 188350 Gatchina, Russia
Representing the L3 Collaboration |
| Abstract: | The ηπ+π- and  final states in two-photon collisions are studied with the L3 detector at LEP. The f1(1285) meson is observed in both channels. The η(1440) and f1(1420) states are observed in the  channel. The Q2 dependences of their production are studied. The f1(1285) γγ-coupling width,  , is evaluated to be 3.5±0.6 (stat.) ±0.5 (sys.) keV. The branching fraction for f1(1285) → a0(980)π is estimated.  is evaluated to be 199 ± 52 eV. |
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