Measurement E213M281

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:	2.0 — 2.4 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	0.9113	0.0374	0.1373	0.1423
54.0	1.0699	0.0618	0.1533	0.1653
90.0	1.1151	0.0523	0.1591	0.1674
126.0	1.1031	0.1148	0.1587	0.1959
162.0	1.292	0.0531	0.1771	0.1849
198.0	1.2341	0.0549	0.1702	0.1788
234.0	1.1971	0.063	0.1666	0.1781
270.0	1.0861	0.056	0.1564	0.1661
306.0	0.9553	0.0524	0.142	0.1514
342.0	0.9664	0.04	0.1423	0.1478

CLAS Physics Database