CLAS Physics Database

Measurement E216M538

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: 1.55 — 1.6 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 0.689496 0.0684837
27.0 0.652667 0.0463705
45.0 0.554165 0.0312671
63.0 0.470953 0.0289076
81.0 0.417584 0.0252996
99.0 0.345139 0.0241785
117.0 0.380095 0.0249386
135.0 0.386917 0.0423573
153.0 0.364855 0.0249336
171.0 0.420004 0.0498842