Measurement E213M920

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:	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	0.3259	0.0268	0.0738	0.0785
54.0	0.3471	0.0299	0.0776	0.0832
90.0	0.4876	0.0539	0.0982	0.112
126.0	0.5189	0.0367	0.0997	0.1062
162.0	0.5662	0.0339	0.104	0.1093
198.0	0.5676	0.0557	0.1046	0.1185
234.0	0.4133	0.0399	0.0868	0.0956
270.0	0.3855	0.028	0.0859	0.0904
306.0	0.3383	0.0233	0.076	0.0795
342.0	0.2854	0.0199	0.0687	0.0715

CLAS Physics Database