Measurement E213M478

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:	2.4 — 3.0 GeV²
W:	1.575 — 1.6 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.399	0.0455	0.0742	0.087
54.0	0.4384	0.0343	0.0623	0.0711
90.0	0.5331	0.0342	0.0691	0.0771
126.0	0.5153	0.0255	0.0659	0.0707
162.0	0.5224	0.0267	0.0652	0.0704
198.0	0.5472	0.0251	0.0683	0.0727
234.0	0.4943	0.0283	0.0634	0.0694
270.0	0.5105	0.0283	0.0665	0.0722
306.0	0.4343	0.0316	0.0623	0.0699
342.0	0.4171	0.0461	0.0776	0.0902

CLAS Physics Database