CLAS Physics Database

Measurement E213M539

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: 2.4 — 3.0 GeV2
W: 1.75 — 1.775 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.301733 0.8933 0.0842 0.2002 3.0907
0.346918 7.0104 0.4207 1.1271 2.6702
0.392102 9.6371 0.5262 1.3758 1.9459
0.437287 8.5481 0.621 1.2283 1.3763
0.482472 7.1967 2.1995 1.0764 2.4488
0.527657 9.114 0.456 1.2484 1.3291
0.572842 10.2679 0.5306 1.4349 2.0262
0.618027 11.9716 0.6602 1.4751 2.0826
0.663211 12.1861 0.7053 1.367 1.5383
0.708396 13.8219 0.6413 1.3808 3.6524
0.753581 13.0937 0.4061 1.2471 3.4775
0.798766 5.1555 0.1993 0.491 4.2279
0.843951 0.0644 0.0107 0.0192 0.022
0.889136 0.0 0.0 0.0 0.0