Measurement E213M1424

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:	4.2 — 5.0 GeV²
W:	2.025 — 2.05 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1192	0.0096	0.0347	0.036
54.0	0.1492	0.0148	0.0396	0.0423
90.0	0.2226	0.0177	0.0474	0.0505
126.0	0.2271	0.0224	0.0467	0.0518
162.0	0.3302	0.0319	0.0526	0.0615
198.0	0.3182	0.0249	0.0516	0.0573
234.0	0.2657	0.0227	0.0499	0.0549
270.0	0.1963	0.017	0.0455	0.0485
306.0	0.1649	0.0179	0.0416	0.0452
342.0	0.1278	0.0119	0.0356	0.0376

CLAS Physics Database