Production of 3pi0 and eta 2pi0 from pi-p Collision in GAMS Experiment
Abstract
The data on the pi- p --> M0 n, with M0 = pi0 pi0 pi0 or pi0 pi0 eta obtained in the GAMS experiment may be useful to study the sigma(400--700) and a1chi (1000), which can be taken as chiral partners of pi and rho, respectively. A preliminary analysis for 3pi0 invariant mass spectra gives a support for the assumed a1chi with a mass of 930 MeV and Gamma = 170 MeV.
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