Measurement E213M1289

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:	4.2 — 5.0 GeV²
W:	1.65 — 1.675 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1627	0.0278	0.0408	0.0494
54.0	0.199	0.0221	0.0473	0.0522
90.0	0.189	0.0198	0.0466	0.0661
126.0	0.2181	0.0216	0.0517	0.0731
162.0	0.3258	0.033	0.0689	0.0968
198.0	0.2587	0.0222	0.0578	0.0813
234.0	0.2914	0.0288	0.0637	0.0901
270.0	0.2951	0.0494	0.064	0.0908
306.0	0.1733	0.0237	0.043	0.0491
342.0	0.1497	0.0155	0.0386	0.0416

CLAS Physics Database