CLAS physics database search results Measurement E159M736 E1-6 V. Burkert 2001 M(pi+,pi-) dsigma/dM(pip pim) Data errors GeV mcb/GeV mcb/GeV 0.337144 3.93954 0.743675 0.373153 3.16888 0.568964 0.409162 4.29242 0.763833 0.445171 3.89885 0.737589 0.48118 4.94738 0.867351 0.517189 3.51445 0.590925 0.553198 5.21414 0.897357 0.589207 4.51987 0.733815 0.625216 4.68857 0.799618 0.661225 3.13479 0.547204