Measurement E213M757

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:	1.625 — 1.65 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4013	0.0527	0.0632	0.0822
54.0	0.3501	0.0334	0.0423	0.0538
90.0	0.4312	0.0356	0.0466	0.0586
126.0	0.4075	0.0343	0.0432	0.0552
162.0	0.4682	0.0321	0.0467	0.0567
198.0	0.4906	0.0309	0.0486	0.0576
234.0	0.4436	0.0315	0.0463	0.056
270.0	0.4057	0.0314	0.0438	0.0539
306.0	0.3585	0.0283	0.0431	0.0515
342.0	0.3067	0.0309	0.0537	0.062

CLAS Physics Database