Measurement E213M839

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:	1.85 — 1.875 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4266	0.0278	0.0749	0.1066
54.0	0.4318	0.0308	0.0768	0.0827
90.0	0.4911	0.0402	0.0826	0.0918
126.0	0.5922	0.0446	0.0938	0.1039
162.0	0.691	0.045	0.1036	0.1475
198.0	0.6899	0.0547	0.1032	0.147
234.0	0.5777	0.0442	0.0923	0.1023
270.0	0.5562	0.0363	0.0896	0.0967
306.0	0.5115	0.0462	0.0853	0.097
342.0	0.4483	0.0266	0.0774	0.1096

CLAS Physics Database