CLAS Physics Database

Measurement E159M831

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: 1.875 GeV
Ebeam: 5.75 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 0.668408 0.160583
27.0 1.00134 0.171244
45.0 1.16259 0.183769
63.0 1.41013 0.233092
81.0 1.23328 0.208447
99.0 1.13414 0.188098
117.0 1.03744 0.185587
135.0 0.895131 0.173162
153.0 0.821768 0.170887
171.0 0.614952 0.166283