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Investigations of the mass and decays of the exotic hybrid are reviewed,including calculation of the pion1 to eta pion, eta-prime pion decay widthswithin the QCD sum rules technique. In this calculation, the recently-proposedeta, eta-prime quark mixing scheme is employed. The results indicate that thedecay width Gamma(pion1 to eta pion) around 250 MeV is large compared with thedecay width Gamma(pion1 to eta-prime pion) around 20 MeV. Inspired by theseresults, some phenomenological approaches are suggested to gain anunderstanding of the underlying mechanism of eta pion and eta-prime pion hybriddecays.Comment: 4 pages, talk presented at the 10th International Symposium on  Meson-Nucleon Physics and the Structure of the Nucleon(MENU2004), Beijing,  China, August 29 to September 4, 200

ANALYSIS OF JPC=1-+ EXOTIC HYBRID ηπ, η′π DECAYS

ANALYSIS OF J^PC=1^-+ EXOTIC HYBRID ηπ, η′π DECAYS