CLAS Physics Database

Measurement E213M188

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: 1.5 — 1.525 GeV
Ebeam: 5.754 GeV

Measurement data
M(π+), [GeV] dσ/dM(π+), [μb/GeV] uncertainty syst. uncert. total uncert.
0.291911 5.7859 0.5226 1.4838 2.126
0.317453 14.6757 0.9806 3.8496 5.4661
0.342995 18.5351 1.2761 4.0985 5.7945
0.368537 17.102 1.158 3.6092 3.7905
0.394079 19.6033 1.1428 3.3552 3.5445
0.419621 20.2224 1.096 3.0618 3.252
0.445163 23.0946 1.496 3.0415 3.3895
0.470705 25.406 1.1395 3.0493 3.2553
0.496247 26.3452 1.0957 2.9138 3.1131
0.521789 26.3474 1.2479 2.686 3.7999
0.547331 20.7522 1.333 2.0473 2.8923
0.572873 4.8028 0.3575 0.5879 5.3896
0.598415 0.0005 0.0 0.0003 0.0003
0.623957 0.0 0.0 0.0 0.0