Measurement E213M695

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:	1.45 — 1.475 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2421	0.0176	0.0505	0.0535
54.0	0.2407	0.0195	0.0497	0.0534
90.0	0.2506	0.0213	0.051	0.0553
126.0	0.2898	0.0204	0.0566	0.0601
162.0	0.3003	0.024	0.0575	0.0623
198.0	0.307	0.0221	0.0584	0.0624
234.0	0.3135	0.0324	0.0597	0.068
270.0	0.2232	0.017	0.0468	0.0498
306.0	0.234	0.0163	0.0491	0.0518
342.0	0.235	0.0196	0.0492	0.053

CLAS Physics Database