CLAS Physics Database

Measurement E159M858

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: 1.95 GeV
Ebeam: 5.75 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 0.879517 0.217555
27.0 1.16552 0.216028
45.0 1.0464 0.178297
63.0 1.18401 0.193521
81.0 1.12523 0.180961
99.0 0.997606 0.162479
117.0 0.943565 0.181314
135.0 0.911137 0.179027
153.0 0.722214 0.164963
171.0 0.477551 0.144523