Measurement E213M1046

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(π⁺)
Q²:	3.5 — 4.2 GeV²
W:	1.7 — 1.725 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4717	0.0292	0.0661	0.0723
54.0	0.4572	0.0295	0.0657	0.072
90.0	0.5365	0.0397	0.0738	0.0838
126.0	0.523	0.0368	0.0736	0.0823
162.0	0.6016	0.0343	0.0795	0.1123
198.0	0.5854	0.0386	0.0781	0.1108
234.0	0.5623	0.0365	0.0759	0.0842
270.0	0.5713	0.0399	0.0762	0.0861
306.0	0.424	0.0345	0.0633	0.0721
342.0	0.4911	0.0313	0.0676	0.0745

CLAS Physics Database