Measurement E213M929

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:	3.0 — 3.5 GeV²
W:	2.1 — 2.125 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2522	0.0163	0.0605	0.0626
54.0	0.2895	0.0199	0.065	0.0679
90.0	0.3886	0.0342	0.0793	0.0864
126.0	0.4063	0.0264	0.0783	0.0827
162.0	0.4971	0.0244	0.0858	0.0892
198.0	0.5771	0.0383	0.0959	0.1032
234.0	0.4393	0.0462	0.082	0.0942
270.0	0.3492	0.0223	0.0748	0.0781
306.0	0.2643	0.0233	0.0621	0.0663
342.0	0.2722	0.0183	0.0624	0.065

CLAS Physics Database