Measurement E213M1362

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:	1.85 — 1.875 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2354	0.021	0.0566	0.0604
54.0	0.2636	0.0215	0.0496	0.0541
90.0	0.1909	0.0191	0.0402	0.0445
126.0	0.1709	0.0417	0.039	0.0571
162.0	0.2203	0.0183	0.0451	0.0487
198.0	0.3034	0.0305	0.0547	0.0626
234.0	0.2533	0.0303	0.0485	0.0572
270.0	0.2266	0.0191	0.0444	0.0484
306.0	0.2487	0.0253	0.0477	0.054
342.0	0.2082	0.0177	0.053	0.0559

CLAS Physics Database