CLAS Physics Database

Measurement E216M457

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: 1.8 — 1.85 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 1.35063 0.0947913
27.0 1.23106 0.040759
45.0 1.28113 0.0521714
63.0 1.3144 0.0360666
81.0 1.23556 0.034961
99.0 1.14765 0.0305082
117.0 1.00327 0.0587565
135.0 0.833348 0.032318
153.0 0.937227 0.0336176
171.0 1.23898 0.0730999