CLAS Physics Database

Measurement E213M782

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: 3.0 — 3.5 GeV2
W: 1.7 — 1.725 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.297268 1.9372 0.2309 0.3635 0.4307
0.333525 6.8565 0.6523 1.0004 2.8347
0.369781 9.8719 0.881 1.2503 3.1406
0.406037 7.9556 0.6697 1.0908 1.28
0.442294 8.8116 0.6933 1.1855 1.3734
0.47855 8.4757 0.6137 1.1398 1.2945
0.514806 8.6592 0.619 1.0705 1.2366
0.551062 11.0732 0.8187 1.13 1.3954
0.587319 10.6494 0.8454 1.072 1.3652
0.623575 10.5577 0.661 0.9936 1.1934
0.659831 10.7234 0.8285 0.9194 1.2995
0.696087 10.4784 0.5316 0.8598 2.6736
0.732344 9.4018 0.4851 0.7541 3.5658
0.7686 3.6821 0.2495 0.3047 0.3938