Measurement E213M1155

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:	2.0 — 2.025 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2883	0.0212	0.0639	0.0673
54.0	0.2578	0.0169	0.0521	0.0547
90.0	0.3098	0.0263	0.0569	0.0627
126.0	0.3072	0.0203	0.0577	0.0611
162.0	0.319	0.0178	0.0587	0.0613
198.0	0.3131	0.0217	0.0586	0.0625
234.0	0.302	0.0181	0.0575	0.0603
270.0	0.2748	0.0164	0.0528	0.0552
306.0	0.2717	0.0172	0.0533	0.056
342.0	0.2727	0.0203	0.0624	0.0656

CLAS Physics Database