Measurement E213M857

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:	3.0 — 3.5 GeV²
W:	1.9 — 1.925 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4614	0.0302	0.0741	0.08
54.0	0.4531	0.0376	0.0752	0.0841
90.0	0.521	0.0346	0.0822	0.0892
126.0	0.6327	0.0993	0.0922	0.1355
162.0	0.6747	0.0514	0.095	0.108
198.0	0.725	0.0393	0.1001	0.1075
234.0	0.5868	0.0547	0.0877	0.1034
270.0	0.5037	0.0322	0.0805	0.0867
306.0	0.4652	0.0313	0.076	0.0822
342.0	0.453	0.0397	0.0731	0.0832

CLAS Physics Database