M. Acciarri et al., RESONANCE FORMATION IN THE PI(-) PI(0) FINAL-STATE IN 2-PHOTON COLLISIONS() PI(), Physics letters. Section B, 413(1-2), 1997, pp. 147-158
A study of resonance formation is presented in the pi(+)pi(-)pi(0) fin
al state in two-photon collisions at LEP. The alpha(2)(1320) radiative
width is measured to be Gamma(eta) = 0.98 +/- 0.05 +/- 0.09 keV. The
helicity 2 production is dominant. Exclusive pi(+)pi(-)pi(0) productio
n has also been studied in the mass region above the alpha(2) in the r
ho pi and f(2) pi channels. This region is dominated by a J(P) = 2(+)
helicity 2 wave. (C) 1997 Elsevier Science B.V.