Measurement E213M911

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:	2.05 — 2.075 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3026	0.0223	0.062	0.0659
54.0	0.3398	0.0233	0.0664	0.0704
90.0	0.3829	0.0314	0.0733	0.0798
126.0	0.4402	0.0416	0.0774	0.0879
162.0	0.5659	0.0288	0.0899	0.0943
198.0	0.5506	0.0265	0.0889	0.0927
234.0	0.4656	0.0318	0.0804	0.0865
270.0	0.356	0.0442	0.0712	0.0838
306.0	0.3817	0.0431	0.0706	0.0827
342.0	0.3036	0.0222	0.0616	0.0655

CLAS Physics Database