Measurement E213M993

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:	1.55 — 1.575 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2783	0.0224	0.059	0.0631
54.0	0.2205	0.0184	0.0409	0.0448
90.0	0.1877	0.0186	0.0337	0.0385
126.0	0.2416	0.019	0.0401	0.0574
162.0	0.2424	0.0185	0.0398	0.0568
198.0	0.2665	0.0214	0.0434	0.0614
234.0	0.1871	0.0182	0.0334	0.0471
270.0	0.1984	0.0204	0.0354	0.0408
306.0	0.2426	0.0199	0.044	0.0483
342.0	0.2525	0.0212	0.0557	0.0596

CLAS Physics Database