CLAS physics database search results Measurement E159M331 E1-6 V. Burkert 2001 M(pi+,pi-) dsigma/dM(pip pim) Data errors GeV mcb/GeV mcb/GeV 0.340894 13.2129 1.81656 0.384403 14.2096 1.91749 0.427913 14.3562 1.94615 0.471421 14.8172 1.98853 0.51493 17.9637 2.44806 0.558439 17.4082 2.31442 0.601948 19.9058 2.74574 0.645458 18.6831 2.45026 0.688967 16.6628 2.20053 0.732475 13.6595 1.74947