Measurement E213M739

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:	1.575 — 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	0.2806	0.0387	0.0413	0.0566
54.0	0.3387	0.0299	0.0358	0.0466
90.0	0.3322	0.0333	0.0336	0.0473
126.0	0.3606	0.0246	0.0352	0.043
162.0	0.3959	0.0253	0.0375	0.0452
198.0	0.3799	0.0233	0.0362	0.043
234.0	0.4025	0.0259	0.0387	0.0466
270.0	0.3273	0.024	0.033	0.0408
306.0	0.2969	0.0284	0.0322	0.043
342.0	0.3066	0.0409	0.0432	0.0595

CLAS Physics Database