storing the term in square brackets, a matrix indexed by α,β, for contractions with varying free production parameters ''u'' in the course of a fit.
+
storing the term in square brackets, a matrix indexed by α,β, for contractions with varying free PWA parameters ''u'' in the course of a fit.
When considering the uncertainty on the overall integral, both the errors on ''u'' parameters
When considering the uncertainty on the overall integral, both the errors on ''u'' parameters