Measurement E213M1198

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:	4.2 — 5.0 GeV²
W:	1.4 — 1.425 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.0543	0.0032	0.0347	0.0348
54.0	0.0663	0.009	0.0315	0.0328
90.0	0.0733	0.0108	0.0312	0.033
126.0	0.0848	0.0108	0.033	0.0347
162.0	0.0742	0.0106	0.0287	0.0306
198.0	0.0816	0.0099	0.03	0.0316
234.0	0.07	0.0095	0.0295	0.031
270.0	0.0766	0.01	0.032	0.0336
306.0	0.0639	0.0083	0.0314	0.0324
342.0	0.059	0.0055	0.0353	0.0358

CLAS Physics Database