Measurement E213M1073

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:	1.775 — 1.8 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3249	0.0214	0.0455	0.0503
54.0	0.3051	0.0206	0.0448	0.0493
90.0	0.3968	0.0319	0.0533	0.0621
126.0	0.4277	0.0323	0.0566	0.0651
162.0	0.4573	0.0294	0.0582	0.0652
198.0	0.4177	0.0257	0.0546	0.0604
234.0	0.3808	0.0328	0.0522	0.0616
270.0	0.3747	0.0383	0.0514	0.0641
306.0	0.3005	0.0204	0.0448	0.0493
342.0	0.2878	0.0197	0.0423	0.0466

CLAS Physics Database