Measurement E213M956

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:	3.5 — 4.2 GeV²
W:	1.45 — 1.475 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1483	0.0141	0.0252	0.0289
54.0	0.1639	0.0153	0.0265	0.0306
90.0	0.2106	0.0168	0.0308	0.0435
126.0	0.1976	0.0188	0.0295	0.035
162.0	0.2205	0.0181	0.0315	0.0363
198.0	0.2168	0.019	0.0309	0.0363
234.0	0.178	0.0206	0.0273	0.0342
270.0	0.1744	0.0142	0.0274	0.0386
306.0	0.1545	0.0132	0.0255	0.0288
342.0	0.1564	0.0161	0.026	0.0306

CLAS Physics Database