CLAS Physics Database

Measurement E213M242

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: 1.65 — 1.675 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.297268 3.7321 0.2857 0.9231 0.9663
0.333525 11.666 0.9814 2.6005 2.7795
0.369781 16.3598 1.1687 3.2033 3.4099
0.406037 15.8528 1.0503 3.1443 3.3151
0.442294 16.0857 1.2538 3.1569 3.3968
0.47855 17.0308 1.0929 3.0867 3.2744
0.514806 17.2079 0.9754 3.1261 3.2747
0.551062 18.1622 1.0799 3.3124 3.484
0.587319 18.6338 0.8462 2.8075 2.9323
0.623575 18.6894 0.8671 2.2476 2.409
0.659831 16.9156 0.817 1.9158 2.0828
0.696087 14.7836 0.6237 1.6492 1.7632
0.732344 1.8582 0.1843 0.2761 0.332
0.7686 0.0 0.0 0.0 0.0