CLAS Physics Database

Measurement E216M557

Experiment: CLAS12 Run Group A
Year: 2018
Spokesperson: Krishna Chandra
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π+)))
Q2: 4.2 — 5.0 GeV2
W: 1.65 — 1.7 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.7942 0.0539087
27.0 0.781292 0.0450009
45.0 0.703304 0.0239621
63.0 0.701213 0.0226128
81.0 0.738852 0.0308311
99.0 0.771794 0.0392075
117.0 0.711994 0.0373705
135.0 0.591403 0.028982
153.0 0.521402 0.0261233
171.0 0.65789 0.00177679