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COMPASS is a multi-purpose fixed-target experiment at the CERN Super Proton Synchrotron
investigating the structure and spectrum of hadrons. One primary goal is the search for new
hadronic states, i...
We present first results of a partial wave analysis of the diffractive reaction $\pi- Pb \to \pi- \pi+ \pi- Pb$ based on data from the COMPASS experiment taken during a pilot run in 2004 using a 190 ...