Fig. (5)
Differential cross sections dσ/ d Mπ
+
π
−
vs M π
+
π
−
at s =1960 and 900 GeV for π
+
π
−
< 5 Mπ
+
π
−
< 1.5 GeV (left) and Mπ
+
π
-
< 2 GeV (right).
