Measurement E213M1208

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:	1.425 — 1.45 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.0977	0.0169	0.0292	0.0337
54.0	0.084	0.0122	0.0259	0.0286
90.0	0.1008	0.0191	0.0297	0.0353
126.0	0.0978	0.0118	0.029	0.0313
162.0	0.1246	0.0136	0.0349	0.0375
198.0	0.1381	0.0168	0.038	0.0416
234.0	0.1062	0.014	0.0308	0.0339
270.0	0.0926	0.0152	0.0279	0.0318
306.0	0.0825	0.0139	0.0257	0.0292
342.0	0.1024	0.0141	0.0303	0.0334

CLAS Physics Database