Measurement E213M219

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(p)
Q²:	2.0 — 2.4 GeV²
W:	1.575 — 1.6 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.8562	0.0567	0.1592	0.2234
54.0	0.7828	0.0536	0.1172	0.1289
90.0	0.6902	0.0458	0.0949	0.1053
126.0	0.6673	0.0371	0.0883	0.0958
162.0	0.7527	0.0383	0.0937	0.1012
198.0	0.7595	0.0372	0.0955	0.1025
234.0	0.7012	0.0401	0.0924	0.1007
270.0	0.7128	0.0391	0.098	0.1055
306.0	0.7608	0.0446	0.114	0.1224
342.0	0.8307	0.056	0.1599	0.2234

CLAS Physics Database