LEAR results on exotics or the search for non-qq mesons Original Research Article

The talk can be divided into two major topics. First, the experimental evidence and the nature of the isoscalar mesons f0(1500), fJ(1710) and JJ (2220) will be discussed. Second, the need for a resonant ηπ P-wave with exotic quantum numbers is shown. For both topics, the results from LEAR will be compared to those of other experiments.