Measurement E213M1236

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:	1.5 — 1.525 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1792	0.0248	0.0488	0.0547
54.0	0.1439	0.0171	0.0352	0.0497
90.0	0.1439	0.0165	0.0333	0.0372
126.0	0.1962	0.0241	0.0415	0.0584
162.0	0.1887	0.0203	0.0399	0.0567
198.0	0.1999	0.02	0.042	0.0601
234.0	0.137	0.0173	0.0317	0.0445
270.0	0.1851	0.023	0.0411	0.0581
306.0	0.1292	0.0164	0.0328	0.0461
342.0	0.1884	0.0285	0.0506	0.058

CLAS Physics Database