CLAS Physics Database

Measurement E216M602

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: 1.9 — 1.95 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.938517 0.063758
27.0 0.935839 0.0298111
45.0 0.813377 0.0208373
63.0 0.795704 0.0272437
81.0 0.818846 0.0291264
99.0 0.862208 0.0295321
117.0 0.789364 0.0314831
135.0 0.592649 0.0426998
153.0 0.452661 0.0273594
171.0 0.480133 0.00124983