CLAS Physics Database

Measurement E216M448

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π)))
Q2: 3.5 — 4.2 GeV2
W: 1.75 — 1.8 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 1.34493 0.0834922
27.0 1.2333 0.0426399
45.0 1.22397 0.0324975
63.0 1.29671 0.0609612
81.0 1.26458 0.045047
99.0 1.11323 0.038897
117.0 1.05875 0.0347715
135.0 0.965557 0.0281649
153.0 1.04298 0.0341201
171.0 1.19026 0.0656124