Measurement E213M1216

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:	1.45 — 1.475 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.0689	0.0108	0.0248	0.0271
54.0	0.0874	0.0155	0.0194	0.0248
90.0	0.1098	0.0142	0.0206	0.025
126.0	0.1692	0.021	0.0277	0.0347
162.0	0.1641	0.0169	0.026	0.0374
198.0	0.1855	0.019	0.0285	0.04
234.0	0.1524	0.0188	0.0255	0.0316
270.0	0.0877	0.0117	0.0179	0.0214
306.0	0.0883	0.0132	0.0196	0.0236
342.0	0.1022	0.0158	0.0289	0.033

CLAS Physics Database