Measurement E213M1261

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:	4.2 — 5.0 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	0.0693	0.0144	0.0278	0.039
54.0	0.0893	0.024	0.0271	0.0389
90.0	0.1522	0.0182	0.0428	0.0466
126.0	0.1536	0.0206	0.0429	0.0476
162.0	0.1773	0.0193	0.0481	0.0518
198.0	0.168	0.0162	0.0458	0.0486
234.0	0.1241	0.0133	0.0356	0.038
270.0	0.1358	0.0152	0.0384	0.0413
306.0	0.1216	0.0165	0.0355	0.0503
342.0	0.0836	0.0203	0.0316	0.0445

CLAS Physics Database