Measurement E213M1389

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:	4.2 — 5.0 GeV²
W:	1.925 — 1.95 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2222	0.026	0.0569	0.0626
54.0	0.2066	0.0156	0.0456	0.0482
90.0	0.2337	0.019	0.0481	0.0518
126.0	0.2116	0.0169	0.0488	0.0516
162.0	0.2752	0.0249	0.0555	0.0608
198.0	0.2493	0.0198	0.0522	0.0559
234.0	0.2178	0.0173	0.0501	0.053
270.0	0.2095	0.0182	0.0456	0.0491
306.0	0.22	0.0151	0.0467	0.0491
342.0	0.2082	0.0199	0.055	0.0585

CLAS Physics Database