Measurement E213M1146

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(p)
Q²:	3.5 — 4.2 GeV²
W:	1.975 — 2.0 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2938	0.0327	0.0721	0.0791
54.0	0.2913	0.0235	0.0598	0.0642
90.0	0.3048	0.0283	0.0604	0.0667
126.0	0.3305	0.0219	0.0661	0.0697
162.0	0.3711	0.0232	0.0691	0.0729
198.0	0.391	0.0335	0.072	0.0794
234.0	0.3044	0.0181	0.063	0.0655
270.0	0.3237	0.0301	0.0627	0.0696
306.0	0.285	0.0189	0.0593	0.0622
342.0	0.3184	0.0248	0.0741	0.0781

CLAS Physics Database