CLAS physics database search results Measurement E159M521 E1-6 V. Burkert 2001 M(pi+,p) dsigma/dM(pip pr) Stat. error GeV mcb/GeV mcb/GeV 1.09884 0.731439 0.234984 1.14085 3.48552 0.668857 1.18286 11.029 1.74367 1.22487 16.1834 2.4376 1.26688 10.6483 1.63286 1.30889 7.39884 1.23891 1.3509 6.28292 1.12047 1.39291 4.59159 0.793395 1.43492 2.60408 0.576996 1.47693 0.780283 0.199213