CLAS Physics Database

Measurement E216M512

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 0.450514 0.0820773
27.0 0.387585 0.038
45.0 0.333168 0.0269719
63.0 0.344809 0.0224268
81.0 0.273711 0.0286718
99.0 0.236766 0.0201566
117.0 0.282465 0.0312873
135.0 0.215457 0.021866
153.0 0.294218 0.00149968
171.0 0.361231 0.00033466