CLAS Physics Database

Measurement E216M511

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π)))
Q2: 4.2 — 5.0 GeV2
W: 1.4 — 1.45 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 0.291255 0.051554
27.0 0.343239 0.0341427
45.0 0.32778 0.0358052
63.0 0.27497 0.0582428
81.0 0.24586 0.0323842
99.0 0.252456 0.0238636
117.0 0.288984 0.0247285
135.0 0.287905 0.0307892
153.0 0.302022 0.0331754
171.0 0.379243 0.0553493