Measurement E213M397

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:	2.075 — 2.1 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4605	0.0462	0.111	0.1202
54.0	0.5818	0.0348	0.0947	0.1009
90.0	0.6598	0.0358	0.102	0.1081
126.0	0.9262	0.0409	0.1261	0.1326
162.0	1.0798	0.0419	0.1377	0.144
198.0	1.0496	0.0473	0.1366	0.1446
234.0	0.7474	0.0551	0.1076	0.1208
270.0	0.6909	0.0364	0.1045	0.1106
306.0	0.6274	0.0367	0.1003	0.1067
342.0	0.5653	0.0371	0.1216	0.1271

CLAS Physics Database