CLAS Physics Database

Measurement E213M287

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/dM(π+)
Q2: 2.0 — 2.4 GeV2
W: 1.775 — 1.8 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.301733 2.3344 0.1958 0.5051 0.5417
0.346918 8.6317 0.5753 1.4851 2.9728
0.392102 10.9962 0.6703 1.6921 2.9123
0.437287 11.0049 0.8732 1.6864 2.5205
0.482472 12.6306 0.7225 1.802 1.9415
0.527657 12.6952 0.711 1.7789 1.9157
0.572842 13.8588 0.8552 1.8069 1.9991
0.618027 12.3529 0.721 1.7028 1.8491
0.663211 15.4048 1.0716 1.9102 2.1903
0.708396 15.4962 0.857 1.8661 3.4124
0.753581 15.5154 0.7032 1.5626 3.1223
0.798766 10.8733 0.5583 0.9815 2.7401
0.843951 2.0763 0.1839 0.208 0.3519
0.889136 0.0 0.0 0.0 0.0