Measurement E213M947

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:	3.5 — 4.2 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	0.1632	0.0244	0.0479	0.0538
54.0	0.1014	0.0106	0.0336	0.0475
90.0	0.1392	0.015	0.0422	0.0448
126.0	0.1333	0.0254	0.0407	0.048
162.0	0.2108	0.0181	0.0587	0.0614
198.0	0.206	0.0212	0.0578	0.0615
234.0	0.1345	0.0117	0.0409	0.0425
270.0	0.1503	0.0149	0.0448	0.0472
306.0	0.1477	0.0181	0.0443	0.0625
342.0	0.1181	0.0293	0.0375	0.0476

CLAS Physics Database