Measurement E213M876

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(p)
Q²:	3.0 — 3.5 GeV²
W:	1.95 — 1.975 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4652	0.0409	0.0868	0.096
54.0	0.4442	0.0424	0.0664	0.0788
90.0	0.4605	0.0273	0.0649	0.0704
126.0	0.4967	0.0447	0.0713	0.1033
162.0	0.5519	0.0403	0.0746	0.106
198.0	0.4727	0.0386	0.0672	0.0775
234.0	0.5286	0.0454	0.0742	0.105
270.0	0.4766	0.0353	0.0668	0.0755
306.0	0.4325	0.0284	0.0647	0.0707
342.0	0.4487	0.0389	0.0852	0.0936

CLAS Physics Database