CLAS Physics Database

Measurement E216M413

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: 1.55 — 1.6 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.636768 0.141598
27.0 0.590915 0.0387704
45.0 0.640533 0.0260122
63.0 0.618523 0.0210646
81.0 0.623088 0.0195147
99.0 0.631895 0.0241391
117.0 0.600322 0.0237323
135.0 0.620243 0.021833
153.0 0.584667 0.0460483
171.0 0.831347 0.00219489