Measurement E213M1334

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:	1.775 — 1.8 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1682	0.0166	0.0297	0.034
54.0	0.1899	0.0195	0.0322	0.0377
90.0	0.2303	0.0235	0.0375	0.0443
126.0	0.2556	0.0244	0.0413	0.0479
162.0	0.3021	0.0241	0.0447	0.0508
198.0	0.3147	0.0268	0.0459	0.0531
234.0	0.2499	0.0217	0.0405	0.0459
270.0	0.2181	0.0268	0.0365	0.0453
306.0	0.2087	0.0206	0.0343	0.04
342.0	0.177	0.0148	0.0302	0.0337

CLAS Physics Database