CLAS Physics Database

Measurement E216M422

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: 1.6 — 1.65 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.831158 0.0603144
27.0 0.740108 0.0418416
45.0 0.714879 0.0238664
63.0 0.711211 0.0240904
81.0 0.753126 0.0225888
99.0 0.765507 0.028238
117.0 0.782343 0.0288469
135.0 0.743184 0.0461721
153.0 0.550029 0.0222116
171.0 0.807779 0.00232421