Large variation in the background angles analyzing power of the pd ->t pi+ reaction around 1 GeV.

B. Meyer; J.M. Durand; R. Bertini; H. Catz; G. Gervino; J.L. Lugol; D.M. Sheppard; B.H. Silvermann; J. Arvieux; M. Boivin; A. Boudard; F. Soga; M.Bedjidian; E. Descroix; J.Y. Grossiord; A. Giuchard; R. Haroutunian; J.R. Pizzi; G. Gaillard; Nguyen Van Sen; R. Abegg and D.A. Hutcheon