Measurement E213M1002

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:	3.5 — 4.2 GeV²
W:	1.575 — 1.6 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2487	0.0241	0.0361	0.051
54.0	0.2373	0.0196	0.028	0.0342
90.0	0.2035	0.0183	0.0233	0.0296
126.0	0.1891	0.0196	0.0215	0.0291
162.0	0.2116	0.0223	0.0235	0.04
198.0	0.2382	0.0176	0.0263	0.0374
234.0	0.1972	0.0155	0.0225	0.0273
270.0	0.1838	0.0184	0.0218	0.0285
306.0	0.249	0.0218	0.0295	0.0367
342.0	0.3056	0.039	0.0415	0.0598

CLAS Physics Database