CLAS Physics Database

Measurement E159M840

Experiment: E1-6
Year: 2001

Experiment comment:

Experiment year: 2001—2002
Spokesperson: V. Burkert
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(π)))
Q2: 3.5 — 4.2 GeV2
W: 1.9 GeV
Ebeam: 5.75 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 0.762954 0.212523
27.0 1.05839 0.190605
45.0 1.37164 0.258325
63.0 1.32495 0.226838
81.0 1.43267 0.239843
99.0 1.27557 0.210079
117.0 0.987298 0.175799
135.0 0.910002 0.174797
153.0 0.699123 0.156353
171.0 0.821669 0.231647