CLAS Physics Database

Measurement E213M303

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: 2.0 — 2.4 GeV2
W: 1.8 — 1.825 GeV
Ebeam: 5.754 GeV

Measurement data
θ(p), [deg] dσ/d(−cos(θ(p))), [μb/rad] uncertainty syst. uncert. total uncert.
9.0 2.6381 0.1669 0.6014 0.8544
27.0 2.2993 0.1061 0.3292 0.4705
45.0 2.2785 0.113 0.3338 0.4715
63.0 2.4699 0.1338 0.4557 0.475
81.0 3.2611 0.1568 0.4782 0.5032
99.0 4.1228 0.1823 0.486 0.5191
117.0 3.9534 0.1712 0.469 0.6578
135.0 3.9044 0.1815 0.4696 0.5035
153.0 3.8715 0.1902 0.4395 0.4789
171.0 4.2693 0.2437 0.5606 0.795