CLAS Physics Database

Measurement E213M233

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: 1.625 — 1.65 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.297268 3.4613 0.2801 0.8302 1.2099
0.333525 10.408 0.7024 2.2938 3.25
0.369781 13.5263 0.8647 2.5695 2.7111
0.406037 12.7658 0.8046 2.387 2.519
0.442294 12.9677 0.8769 2.3097 2.4706
0.47855 14.0818 0.9312 2.4983 2.6662
0.514806 15.8691 0.9125 2.655 2.8074
0.551062 13.961 0.7076 1.9728 2.0959
0.587319 14.047 0.7163 1.5451 1.7031
0.623575 13.6999 0.7543 1.36 1.5552
0.659831 10.9125 0.4871 1.0494 1.1569
0.696087 4.7645 0.3308 0.4925 5.3535
0.732344 0.0 0.0 0.0 0.0
0.7686 0.0 0.0 0.0 0.0