Measurement E213M1118

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:	1.9 — 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	0.3143	0.029	0.0542	0.0615
54.0	0.2987	0.0235	0.0539	0.0588
90.0	0.3967	0.0379	0.0665	0.0766
126.0	0.4861	0.0578	0.0745	0.0943
162.0	0.537	0.0558	0.0782	0.0961
198.0	0.4953	0.0379	0.075	0.084
234.0	0.4963	0.0433	0.0749	0.0865
270.0	0.3671	0.0334	0.0625	0.0709
306.0	0.2731	0.0339	0.052	0.0621
342.0	0.2607	0.0287	0.0493	0.0571

CLAS Physics Database