Pion Pair Production From $\gamma \gamma$ Interactions at {PEP} and the Radiative Width of the F0 Meson

The DELCO collaboration
Phys.Lett.B 147 (1984) 227-231, 1984.

Abstract (data abstract)
SLAC-PEP. (PEP-020). DELCO COLLABORATION. PION-PAIR PRODUCTION IN PHOTON-PHOTON INTERACTIONS AND A MEASUREMENT OR THE RADIATIVE WIDTH OF THE F0 MESON. QED E+E- BACKGROUND IS IDENTIFIED AND ELIMINATED. RESULTS AGREE WITH A SIMPLE MODEL OF SUPERPOSITION AND INTERFERENCE OF THE F0(1270) RESONANCE,PRODUCED WITH HELICITY 2,WITH A BORN-TERM CONTINUUM. THE WIDTH OF THE (F0--& gt;GAMMA GAMMA) IS DETERMINED TO BE 2.70 +- 0.21 KEV.

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