Measurement E213M1433

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:	2.05 — 2.075 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1445	0.0135	0.0387	0.041
54.0	0.1413	0.0115	0.0425	0.044
90.0	0.1819	0.0172	0.0468	0.0499
126.0	0.2347	0.0197	0.0505	0.0542
162.0	0.2903	0.02	0.0529	0.0565
198.0	0.3091	0.0196	0.0545	0.0579
234.0	0.2663	0.0254	0.0537	0.0594
270.0	0.1938	0.0201	0.0482	0.0523
306.0	0.1327	0.0097	0.041	0.0422
342.0	0.1348	0.0192	0.0383	0.0429

CLAS Physics Database