Measurement E213M1344

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:	1.8 — 1.825 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2168	0.0172	0.0484	0.0514
54.0	0.2357	0.021	0.039	0.0443
90.0	0.207	0.0191	0.0351	0.0399
126.0	0.271	0.0266	0.0418	0.0496
162.0	0.2284	0.018	0.0378	0.0419
198.0	0.2584	0.0306	0.0406	0.0509
234.0	0.2055	0.0171	0.0362	0.0401
270.0	0.2029	0.0166	0.0349	0.0386
306.0	0.2171	0.0174	0.0372	0.0411
342.0	0.2292	0.0207	0.049	0.0532

CLAS Physics Database