Measurement E213M244

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:	1.65 — 1.675 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.9116	0.0591	0.2079	0.2949
54.0	1.047	0.0822	0.1694	0.1883
90.0	1.1277	0.0581	0.1591	0.1693
126.0	1.1244	0.0668	0.1551	0.1689
162.0	1.1697	0.0661	0.1498	0.1638
198.0	1.2286	0.0549	0.1542	0.1637
234.0	1.2245	0.0664	0.1634	0.1764
270.0	0.9974	0.0916	0.1457	0.1722
306.0	0.959	0.0534	0.1594	0.1681
342.0	0.8139	0.0988	0.1973	0.2873

CLAS Physics Database