CLAS physics database search results Measurement E213M194 E1-6, 2025 R.W. Gothe, A. Trivedi 2001 theta(pi+) dsigma/d(−cos(theta_pip)) Stat. error Syst. error Total error deg mcb/rad mcb/rad mcb/rad mcb/rad 9 3.6854 0.3002 0.4218 0.5954 27 3.5522 0.1517 0.3432 0.4914 45 3.1961 0.1495 0.3359 0.3677 63 2.7571 0.1264 0.3021 0.3275 81 2.9418 0.1147 0.2965 0.3179 99 2.9411 0.132 0.3039 0.3313 117 2.7019 0.1177 0.3469 0.3664 135 2.5683 0.1439 0.6421 0.9094 153 2.6315 0.0454 1.5229 2.1554 171 2.5551 0.0044 1.4988 2.1165