title: etapi and eta'pi spectra and interpretation of possible exotic JPC=1-+ mesons.
abstract: We discuss a coupled channel analysis of the etapi and eta'pi systems produced in pi(-)p interactions at 18 GeV/c. We show that known Q(-)Q resonances, together with residual soft meson-meson rescattering, saturate the spectra including the exotic J(PC)=1(-+) channel. The possibility of a narrow exotic resonance at a mass near 1.6 GeV/c(2) cannot, however, be ruled out.
authors.affiliation: Physics Department and Nuclear Theory Center, Indiana University, Bloomington, IN 47405, USA.
authors.forename: Adam P
authors.initials: AP
authors.lastname: Szczepaniak
authors.forename: Maciej
authors.initials: M
authors.lastname: Swat
authors.forename: Alex R
authors.initials: AR
authors.lastname: Dzierba
authors.forename: Scott
authors.initials: S
authors.lastname: Teige