Measurement E213M784

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:	3.0 — 3.5 GeV²
W:	1.7 — 1.725 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.6624	0.0547	0.1	0.114
54.0	0.6579	0.0422	0.0708	0.0997
90.0	0.6266	0.0381	0.0637	0.0897
126.0	0.7661	0.0443	0.0744	0.0866
162.0	0.8046	0.0516	0.0738	0.0901
198.0	0.7298	0.0366	0.0678	0.0771
234.0	0.7732	0.0439	0.0749	0.0868
270.0	0.7015	0.04	0.0699	0.099
306.0	0.5574	0.0457	0.0626	0.0886
342.0	0.7027	0.0591	0.1022	0.1181

CLAS Physics Database