Measurement E213M1272

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:	1.6 — 1.625 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.206	0.0257	0.0406	0.0575
54.0	0.2004	0.0253	0.0331	0.0417
90.0	0.1293	0.017	0.0231	0.0287
126.0	0.1446	0.0176	0.0244	0.0301
162.0	0.1516	0.0258	0.025	0.0359
198.0	0.1879	0.0191	0.0293	0.0413
234.0	0.1347	0.015	0.0236	0.028
270.0	0.1394	0.0164	0.0247	0.0297
306.0	0.1726	0.0182	0.0293	0.0345
342.0	0.1756	0.0183	0.0368	0.0524

CLAS Physics Database