Measurement E213M1200

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(p)
Q²:	4.2 — 5.0 GeV²
W:	1.4 — 1.425 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.0639	0.0058	0.0348	0.0353
54.0	0.056	0.0063	0.0293	0.03
90.0	0.0775	0.0094	0.0321	0.0335
126.0	0.0787	0.0114	0.0316	0.0336
162.0	0.0754	0.009	0.0305	0.0318
198.0	0.081	0.01	0.0317	0.0332
234.0	0.0769	0.0131	0.0318	0.0344
270.0	0.0687	0.0091	0.0304	0.0317
306.0	0.0572	0.0067	0.0295	0.0303
342.0	0.0686	0.0084	0.0358	0.0368

CLAS Physics Database