Measurement E213M325

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:	1.875 — 1.9 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.8587	0.0471	0.1487	0.1559
54.0	0.9521	0.0503	0.1133	0.124
90.0	0.9613	0.0475	0.1085	0.1185
126.0	1.1076	0.0511	0.1214	0.1317
162.0	1.1686	0.0552	0.1193	0.1658
198.0	1.302	0.0519	0.1283	0.177
234.0	1.0895	0.0566	0.1193	0.1321
270.0	0.9741	0.0433	0.1075	0.1159
306.0	0.9446	0.051	0.1136	0.1245
342.0	0.9252	0.0442	0.1518	0.1581

CLAS Physics Database