CLAS Physics Database

Measurement E216M493

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: 2.0 — 2.05 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 1.99778 0.0983914
27.0 1.50422 0.0602975
45.0 1.31669 0.0381483
63.0 1.13413 0.0297635
81.0 1.07169 0.0321168
99.0 0.8666 0.0204874
117.0 0.819993 0.0242982
135.0 0.767074 0.022146
153.0 0.838153 0.060296
171.0 1.11072 0.0613771