CLAS Physics Database

Measurement E216M621

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(p)))
Q2: 4.2 — 5.0 GeV2
W: 2.0 — 2.05 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty
9.0 0.716539 0.0672906
27.0 0.569118 0.0427169
45.0 0.436717 0.0253171
63.0 0.444139 0.0236729
81.0 0.564735 0.0428462
99.0 0.686063 0.0229212
117.0 0.762359 0.0246966
135.0 0.90841 0.0300282
153.0 1.24161 0.0409816
171.0 1.65065 0.0749165