Measurement E213M218

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:	2.0 — 2.4 GeV²
W:	1.575 — 1.6 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.5687	0.0478	0.1035	0.1494
54.0	0.5798	0.0322	0.1045	0.1461
90.0	0.6892	0.0415	0.1144	0.1217
126.0	0.9858	0.0496	0.1409	0.1493
162.0	1.0177	0.0447	0.1424	0.1493
198.0	1.0211	0.0468	0.1433	0.1508
234.0	0.9743	0.0492	0.1392	0.1476
270.0	0.6796	0.0399	0.1138	0.1205
306.0	0.6817	0.0375	0.1144	0.164
342.0	0.554	0.0429	0.1017	0.1447

CLAS Physics Database