Measurement E213M1434

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:	2.05 — 2.075 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1771	0.02	0.0454	0.0496
54.0	0.1776	0.013	0.0388	0.0409
90.0	0.1565	0.0197	0.0367	0.0416
126.0	0.1707	0.0113	0.0425	0.044
162.0	0.2246	0.0172	0.0458	0.0489
198.0	0.2366	0.0204	0.047	0.0513
234.0	0.1901	0.0195	0.0444	0.0485
270.0	0.1598	0.0119	0.0373	0.0391
306.0	0.1733	0.0117	0.0381	0.0399
342.0	0.1923	0.0159	0.0469	0.0496

CLAS Physics Database