Measurement E213M1441

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:	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	0.1116	0.0122	0.0347	0.0368
54.0	0.1229	0.0101	0.0316	0.0332
90.0	0.177	0.0164	0.0367	0.0402
126.0	0.2261	0.0207	0.0454	0.0499
162.0	0.2895	0.0386	0.0483	0.0618
198.0	0.2937	0.0263	0.0489	0.0555
234.0	0.1972	0.0176	0.0427	0.0462
270.0	0.1704	0.0129	0.0358	0.0381
306.0	0.128	0.0098	0.0315	0.0329
342.0	0.102	0.0094	0.0339	0.0352

CLAS Physics Database