Measurement E213M469

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:	1.55 — 1.575 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.356	0.0316	0.0847	0.0904
54.0	0.4184	0.0271	0.0706	0.0756
90.0	0.414	0.0273	0.0646	0.0702
126.0	0.5209	0.0265	0.0758	0.0804
162.0	0.5036	0.0221	0.0718	0.0751
198.0	0.5472	0.0236	0.0771	0.0806
234.0	0.5077	0.034	0.0745	0.0819
270.0	0.4776	0.0274	0.072	0.0771
306.0	0.4054	0.0264	0.069	0.0739
342.0	0.3537	0.0399	0.0837	0.0927

CLAS Physics Database