Measurement E213M1010

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:	1.6 — 1.625 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1727	0.0173	0.0411	0.0446
54.0	0.1875	0.0156	0.0434	0.0461
90.0	0.2771	0.0279	0.0577	0.064
126.0	0.286	0.0228	0.0589	0.0632
162.0	0.3824	0.0258	0.0737	0.0781
198.0	0.3705	0.0292	0.0716	0.0773
234.0	0.2899	0.0226	0.0596	0.0638
270.0	0.2632	0.0256	0.0556	0.0612
306.0	0.1845	0.0159	0.0429	0.0457
342.0	0.192	0.0231	0.0441	0.0498

CLAS Physics Database