Measurement E213M830

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:	3.0 — 3.5 GeV²
W:	1.825 — 1.85 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.435	0.0283	0.075	0.1063
54.0	0.3874	0.0243	0.0718	0.1019
90.0	0.4408	0.0293	0.0775	0.0829
126.0	0.6162	0.0843	0.0965	0.1349
162.0	0.56	0.0336	0.0895	0.1295
198.0	0.6747	0.0566	0.1023	0.1406
234.0	0.4915	0.0283	0.083	0.1212
270.0	0.4949	0.0361	0.0832	0.0907
306.0	0.3956	0.0316	0.0727	0.1035
342.0	0.4066	0.0219	0.072	0.1017

CLAS Physics Database