Measurement E213M1371

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:	4.2 — 5.0 GeV²
W:	1.875 — 1.9 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.246	0.0221	0.0528	0.0572
54.0	0.194	0.0355	0.0378	0.0519
90.0	0.2412	0.021	0.0416	0.0465
126.0	0.2163	0.0182	0.0415	0.0453
162.0	0.2513	0.0224	0.0447	0.05
198.0	0.2532	0.0202	0.0447	0.0491
234.0	0.2204	0.0214	0.0417	0.0468
270.0	0.1859	0.0134	0.0364	0.0388
306.0	0.2391	0.0264	0.0422	0.0497
342.0	0.2116	0.018	0.0491	0.0523

CLAS Physics Database