M. Swat

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hep-ph2003

The Evidence for a Pentaquark Signal and Kinematic Reflections

A. R. Dzierba, D. Krop, M. Swat +2

Several recent experiments have reported evidence for a narrow baryon resonance with positive strangeness ( $Θ^{+}$ ) at a mass of 1.54 GeV/ $c^{2}$ . Baryons with $S = + 1$ cannot be convent…

hep-ph2003

Study of the $η π$ and $η^{'} π$ spectra and interpetation of possible exotic $J^{P C} = 1^{-+}$ mesons

Adam P. Szczepaniak, Maciej Swat, Alex R. Dzierba +1

We discuss a coupled channel analysis of the $η π$ and $η^{'} π$ systems produced in $π^{-} p$ interactions at 18 GeV/ $c$ . We show that known $Q Q ˉ$ resonances, together with residual s…

The Evidence for a Pentaquark Signal and Kinematic Reflections

Study of the ηπ and η′π spectra and interpetation of possible exotic JPC=1−+ mesons

Study of the $η π$ and $η^{'} π$ spectra and interpetation of possible exotic $J^{P C} = 1^{-+}$ mesons