CLAS Physics Database

Measurement E213M501

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(p)))
Q2: 2.4 — 3.0 GeV2
W: 1.625 — 1.65 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 0.8454 0.0804 0.3095 1.1238
27.0 0.9798 0.0698 0.211 0.3425
45.0 0.9967 0.0622 0.1864 0.2607
63.0 1.3002 0.0905 0.212 0.2305
81.0 1.6853 0.0958 0.2693 0.2858
99.0 1.9182 0.0948 0.2964 0.3112
117.0 2.2287 0.1139 0.3292 0.3484
135.0 2.4108 0.1165 0.3431 0.3624
153.0 2.3302 0.0996 0.3224 0.3374
171.0 2.3497 0.155 0.377 0.4076