CLAS Physics Database

Measurement E213M373

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/d(−cos(θ(π)))
Q2: 2.0 — 2.4 GeV2
W: 2.0 — 2.025 GeV
Ebeam: 5.754 GeV

Measurement data
θ(π), [deg] dσ/d(−cos(θ(π))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 4.573 0.5507 0.6561 0.8566
27.0 3.9211 0.1858 0.4657 0.5014
45.0 3.0619 0.153 0.3926 0.4214
63.0 2.9371 0.1248 0.3998 0.4188
81.0 2.6286 0.1148 0.393 0.4094
99.0 2.5923 0.1158 0.399 0.4154
117.0 2.1493 0.1382 0.3571 0.3829
135.0 2.3259 0.1459 0.3796 0.4067
153.0 2.8703 0.1512 0.4173 0.4438
171.0 3.1302 0.2351 0.5732 0.6195