Measurement E213M1298

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:	1.675 — 1.7 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1904	0.021	0.0337	0.0479
54.0	0.2133	0.0221	0.036	0.0423
90.0	0.2527	0.0234	0.0416	0.0477
126.0	0.313	0.0313	0.048	0.0681
162.0	0.382	0.0423	0.0532	0.0753
198.0	0.3356	0.0258	0.0485	0.0688
234.0	0.329	0.027	0.0495	0.0696
270.0	0.2206	0.0195	0.0384	0.0431
306.0	0.2055	0.0204	0.0356	0.041
342.0	0.177	0.0175	0.0321	0.0457

CLAS Physics Database