CLAS Physics Database

Measurement E213M206

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: 1.55 — 1.575 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.291911 2.1949 0.1648 0.9495 1.3537
0.317453 10.3337 0.7656 3.3192 4.6915
0.342995 12.2165 0.7697 3.847 5.4424
0.368537 13.1862 0.7201 3.9271 3.9926
0.394079 13.0323 0.7449 3.709 3.783
0.419621 14.5124 0.9408 3.6365 3.7563
0.445163 15.6238 0.9529 3.4447 3.5741
0.470705 15.78 1.5111 2.9459 3.3109
0.496247 17.5833 0.8837 2.8743 3.007
0.521789 18.7681 0.9902 2.87 3.036
0.547331 18.9888 0.8322 2.7472 3.8816
0.572873 16.0392 0.7624 2.2473 3.1747
0.598415 12.7875 0.6414 1.7461 1.8602
0.623957 3.0767 0.2794 0.5267 0.5962