CLAS Physics Database

Measurement E216M385

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: 1.4 — 1.45 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 0.504867 0.0664807
27.0 0.394015 0.0405345
45.0 0.375485 0.0276765
63.0 0.354695 0.0561429
81.0 0.379233 0.031987
99.0 0.37138 0.037508
117.0 0.430854 0.0693407
135.0 0.46804 0.0560283
153.0 0.425798 0.0353389
171.0 0.401343 0.0483927