CLAS Physics Database

Measurement E216M404

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: 1.5 — 1.55 GeV

Measurement data
θ(π+), [deg] dσ/d(−cos(θ(π+))), [μb/rad] uncertainty
9.0 0.660768 0.0592484
27.0 0.689552 0.0404065
45.0 0.691549 0.0316098
63.0 0.651491 0.0241824
81.0 0.703326 0.031411
99.0 0.584633 0.0437157
117.0 0.617879 0.0327622
135.0 0.605933 0.0232348
153.0 0.598253 0.0164483
171.0 0.93739 0.00137793