Measurement E213M1037

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:	3.5 — 4.2 GeV²
W:	1.675 — 1.7 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.338	0.0275	0.0592	0.0653
54.0	0.3905	0.0289	0.0656	0.093
90.0	0.4165	0.0271	0.0693	0.0744
126.0	0.4768	0.0376	0.0765	0.0852
162.0	0.5126	0.0307	0.0801	0.1137
198.0	0.5371	0.0333	0.0826	0.1173
234.0	0.4191	0.0256	0.0697	0.0743
270.0	0.3869	0.0255	0.0658	0.0706
306.0	0.3364	0.0313	0.0598	0.0842
342.0	0.3292	0.021	0.0583	0.062

CLAS Physics Database