CLAS Physics Database

Measurement E216M278

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 3.0 — 3.5 GeV2
W: 1.5 — 1.55 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.917012 0.0935864
27.0 1.00101 0.0628456
45.0 1.02704 0.0395754
63.0 0.946703 0.0319879
81.0 0.893775 0.0299469
99.0 0.886988 0.0344246
117.0 0.863341 0.0304277
135.0 0.793687 0.0308081
153.0 0.745934 0.0391272
171.0 1.13874 0.00722272