CLAS Physics Database

Measurement E216M423

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(p)))
Q2: 3.5 — 4.2 GeV2
W: 1.6 — 1.65 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty
9.0 0.56184 0.0630909
27.0 0.523952 0.0320451
45.0 0.568232 0.0391091
63.0 0.659525 0.0371654
81.0 0.666111 0.0309432
99.0 0.776249 0.0253414
117.0 0.909674 0.0481958
135.0 0.914305 0.0352239
153.0 0.909353 0.0398106
171.0 0.923547 0.081086