CLAS Physics Database

Measurement E159M859

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 1.204 0.252907
27.0 0.947587 0.179633
45.0 1.03917 0.185178
63.0 1.2973 0.226425
81.0 1.20341 0.202742
99.0 1.17977 0.202887
117.0 1.04991 0.181775
135.0 1.18017 0.33322
153.0 0.988648 0.760464
171.0 0.940038 0.76988