CLAS Physics Database

Measurement E213M215

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: 1.575 — 1.6 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.297268 4.0053 0.3619 0.9569 1.3568
0.333525 13.1192 1.0041 2.5092 3.5449
0.369781 12.5429 0.8572 2.5313 3.584
0.406037 11.2203 0.8925 2.4245 2.5836
0.442294 14.3654 0.9214 2.5968 2.7555
0.47855 13.8677 0.8414 2.0648 2.2296
0.514806 15.3016 0.8801 1.7055 1.9192
0.551062 16.2269 0.6497 1.6463 1.7699
0.587319 15.3389 0.625 1.4678 2.0738
0.623575 13.1366 0.6151 1.2277 1.7344
0.659831 1.0967 0.1292 0.1583 0.2043
0.696087 0.0 0.0 0.0 0.0
0.732344 0.0 0.0 0.0 0.0
0.7686 0.0 0.0 0.0 0.0