Measurement E213M875

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:	3.0 — 3.5 GeV²
W:	1.95 — 1.975 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4011	0.0282	0.0702	0.0993
54.0	0.413	0.0417	0.0726	0.1021
90.0	0.4055	0.0218	0.0742	0.0773
126.0	0.6077	0.0384	0.0926	0.1316
162.0	0.6112	0.0349	0.0926	0.1319
198.0	0.5856	0.0278	0.0903	0.128
234.0	0.5604	0.0425	0.0893	0.1265
270.0	0.4508	0.0348	0.0782	0.0856
306.0	0.3627	0.0227	0.0686	0.0978
342.0	0.3584	0.022	0.0659	0.0926

CLAS Physics Database