CLAS Physics Database

Measurement E159M21

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: 2.0 — 2.4 GeV2
W: 1.425 GeV
Ebeam: 5.75 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty
9.0 2.1037 0.499767
27.0 1.01037 0.208387
45.0 1.08027 0.197976
63.0 1.133 0.196934
81.0 0.912128 0.162652
99.0 1.00729 0.187957
117.0 1.06093 0.184614
135.0 0.914983 0.168978
153.0 1.104 0.218833
171.0 1.15891 0.334451