Measurement E213M1271

Experiment:	E1-6, 2025
Year:	2001	Measurement comment: The angle ψ is the angle between the plane defined by the three-momenta of the hadron (in parentheses) and the target proton, and the plane defined by the three-momenta of the other two final-state hadrons Experiment comment: Experiment year: 2001—2002
Spokespersons:	R.W. Gothe, A. Trivedi
Reaction:	ep → π⁺π⁻p
Polarization:	none
Quantity:	dσ/dψ(π⁺)
Q²:	4.2 — 5.0 GeV²
W:	1.6 — 1.625 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1128	0.0187	0.0244	0.0307
54.0	0.1172	0.0133	0.0254	0.0286
90.0	0.1524	0.0172	0.0297	0.0343
126.0	0.1896	0.0193	0.0346	0.0396
162.0	0.2499	0.0245	0.0413	0.0586
198.0	0.2806	0.0355	0.045	0.0632
234.0	0.2143	0.0256	0.0374	0.0453
270.0	0.1438	0.0153	0.029	0.0328
306.0	0.1242	0.0156	0.0262	0.0305
342.0	0.1224	0.0144	0.0256	0.0294

CLAS Physics Database