Measurement E213M1047

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:	1.7 — 1.725 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.5553	0.0402	0.0899	0.0985
54.0	0.4631	0.0382	0.0596	0.0708
90.0	0.5128	0.0311	0.0598	0.0674
126.0	0.4845	0.0308	0.0558	0.079
162.0	0.5296	0.0342	0.0582	0.0823
198.0	0.6081	0.0409	0.0646	0.0916
234.0	0.5173	0.044	0.0587	0.0825
270.0	0.5004	0.0325	0.0597	0.068
306.0	0.5303	0.036	0.0655	0.0747
342.0	0.5081	0.0502	0.0853	0.0989

CLAS Physics Database