CLAS Physics Database

Measurement E213M536

Experiment: E1-6, 2025
Year: 2001

Experiment comment:

Experiment year: 2001—2002
Spokespersons: R.W. Gothe, A. Trivedi
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 2.4 — 3.0 GeV2
W: 1.725 — 1.75 GeV
Ebeam: 5.754 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 3.1356 0.172 0.3663 0.4047
27.0 2.9579 0.1103 0.34 0.3574
45.0 2.9589 0.1447 0.3504 0.3791
63.0 3.2491 0.1245 0.3784 0.3983
81.0 3.154 0.1016 0.372 0.3857
99.0 3.3131 0.1143 0.3882 0.4047
117.0 3.0528 0.1218 0.3784 0.3975
135.0 2.3892 0.1466 0.4409 0.6276
153.0 2.2838 0.1974 0.9857 1.4022
171.0 2.8245 0.0036 1.6873 2.3836