Measurement E213M658

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:	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	0.4112	0.0278	0.0891	0.0934
54.0	0.4368	0.0251	0.0722	0.0764
90.0	0.5097	0.0325	0.0821	0.0883
126.0	0.6244	0.0302	0.0924	0.0972
162.0	0.8075	0.036	0.109	0.1148
198.0	0.8471	0.0462	0.1142	0.1232
234.0	0.6	0.033	0.0906	0.0964
270.0	0.5013	0.0223	0.0819	0.0849
306.0	0.4049	0.0268	0.0687	0.0738
342.0	0.391	0.0288	0.0879	0.0925

CLAS Physics Database