Measurement E213M1173

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:	2.05 — 2.075 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2573	0.0201	0.0624	0.0656
54.0	0.2611	0.017	0.0544	0.057
90.0	0.2354	0.0158	0.051	0.0534
126.0	0.2941	0.0195	0.0601	0.0632
162.0	0.3013	0.0233	0.0595	0.0639
198.0	0.2879	0.0175	0.0583	0.0609
234.0	0.2814	0.0203	0.0584	0.0618
270.0	0.2337	0.014	0.0505	0.0525
306.0	0.2617	0.0152	0.0545	0.0566
342.0	0.255	0.0205	0.0619	0.0652

CLAS Physics Database