CLAS Physics Database

Measurement E216M467

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: 1.85 — 1.9 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 1.37189 0.0557446
27.0 1.23541 0.029573
45.0 1.18507 0.0273556
63.0 1.20436 0.0398389
81.0 1.34419 0.0363897
99.0 1.40992 0.0383194
117.0 1.14991 0.0776006
135.0 1.14206 0.159729
153.0 0.736952 0.0469396
171.0 0.785441 0.0021224