Measurement E213M541

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:	2.4 — 3.0 GeV²
W:	1.75 — 1.775 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.8033	0.048	0.1325	0.1409
54.0	0.7814	0.0441	0.096	0.1056
90.0	0.7943	0.0336	0.0914	0.0974
126.0	0.8366	0.0489	0.095	0.1069
162.0	0.9422	0.0558	0.0983	0.113
198.0	0.8634	0.0434	0.0918	0.1016
234.0	0.8046	0.0363	0.0922	0.0991
270.0	0.853	0.0455	0.0962	0.1064
306.0	0.8115	0.041	0.0997	0.1078
342.0	0.746	0.0474	0.127	0.1355

CLAS Physics Database