Measurement E213M659

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:	2.4 — 3.0 GeV²
W:	2.075 — 2.1 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4641	0.0268	0.0948	0.0985
54.0	0.5012	0.0288	0.1007	0.1047
90.0	0.6475	0.0511	0.1188	0.1293
126.0	0.5924	0.0272	0.1114	0.1147
162.0	0.8047	0.031	0.1316	0.1352
198.0	0.7794	0.0323	0.129	0.133
234.0	0.6086	0.0331	0.1124	0.1172
270.0	0.526	0.0288	0.1075	0.1113
306.0	0.4875	0.0329	0.0989	0.1042
342.0	0.5257	0.0334	0.1015	0.1068

CLAS Physics Database