CLAS Physics Database

Measurement E213M1032

Experiment: E1-6, 2025
Year: 2001

Experiment comment:

Experiment year: 2001—2002
Spokespersons: R.W. Gothe, A. Trivedi
Reaction: ep → π+πp
Polarization: none
Quantity: dσ/d(−cos(θ(p)))
Q2: 3.5 — 4.2 GeV2
W: 1.65 — 1.675 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 0.6667 0.0982 0.1768 0.2022
27.0 0.5896 0.0612 0.1082 0.1243
45.0 0.7369 0.0525 0.1094 0.1214
63.0 0.8275 0.0662 0.1103 0.1286
81.0 1.1688 0.074 0.1454 0.1631
99.0 1.3064 0.0788 0.1612 0.1794
117.0 1.5543 0.0943 0.1919 0.2138
135.0 1.4313 0.0886 0.1749 0.1961
153.0 1.4116 0.0924 0.1665 0.1905
171.0 1.4189 0.1372 0.1951 0.2385