CLAS physics database search results Measurement E159M44 E1-6 V. Burkert 2001 M(pi+,p) dsigma/dM(pip pr) Data errors GeV mcb/GeV mcb/GeV 1.09259 1.08293 0.34811 1.1221 4.59729 1.05897 1.15161 9.84266 1.51114 1.18112 23.8999 3.29756 1.21063 33.6571 4.40996 1.24014 27.2433 3.67252 1.26965 19.151 2.65834 1.29916 12.0394 1.84537 1.32867 7.74649 1.30506 1.35818 2.21645 0.504275