Measurement E213M228

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:	1.6 — 1.625 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.868	0.1012	0.1909	0.2702
54.0	0.8682	0.0546	0.1495	0.2151
90.0	0.8386	0.0523	0.1312	0.1413
126.0	0.7222	0.0405	0.113	0.12
162.0	0.7951	0.0381	0.1175	0.1235
198.0	0.7863	0.0432	0.1162	0.124
234.0	0.7878	0.0534	0.1215	0.1327
270.0	0.7282	0.0426	0.1199	0.1272
306.0	1.0763	0.0694	0.1717	0.2483
342.0	1.0263	0.0659	0.2072	0.2921

CLAS Physics Database