Measurement E213M1110

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:	3.5 — 4.2 GeV²
W:	1.875 — 1.9 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3385	0.0274	0.0733	0.0783
54.0	0.391	0.0354	0.0651	0.0742
90.0	0.3408	0.0326	0.0571	0.0658
126.0	0.3283	0.0228	0.0575	0.0618
162.0	0.4561	0.0411	0.0705	0.0816
198.0	0.3848	0.0317	0.0621	0.0697
234.0	0.3371	0.069	0.0582	0.0902
270.0	0.3789	0.0394	0.0616	0.0731
306.0	0.4335	0.04	0.0703	0.0809
342.0	0.3637	0.0331	0.0763	0.0832

CLAS Physics Database