Measurement E213M974

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:	1.5 — 1.525 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2312	0.0213	0.0457	0.0504
54.0	0.2115	0.0192	0.0432	0.0611
90.0	0.2468	0.0193	0.0473	0.0511
126.0	0.3427	0.0286	0.0594	0.0659
162.0	0.378	0.0268	0.0635	0.09
198.0	0.3658	0.0321	0.0618	0.0876
234.0	0.3024	0.0483	0.0544	0.0727
270.0	0.2766	0.024	0.0514	0.0567
306.0	0.2464	0.0198	0.0475	0.0674
342.0	0.2279	0.0172	0.0452	0.0484

CLAS Physics Database