CLAS physics database search results Measurement E159M355 E1-6 V. Burkert 2001 theta(pi+) dsigma/d(−cos(theta_pip)) Data errors deg mcb/rad mcb/rad 9 2.58337 0.462861 27 3.45781 0.522549 45 3.07383 0.439206 63 3.36478 0.454718 81 3.16558 0.419872 99 3.54304 0.471723 117 2.94262 0.396308 135 2.73858 0.525634 153 1.87745 1.10212 171 2.15352 1.3347