Measurement E213M946

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:	1.425 — 1.45 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1159	0.0139	0.0447	0.0468
54.0	0.1427	0.0169	0.0418	0.0451
90.0	0.139	0.0147	0.0383	0.041
126.0	0.1762	0.0176	0.0462	0.0494
162.0	0.1379	0.0376	0.0363	0.0522
198.0	0.192	0.0188	0.049	0.0525
234.0	0.1729	0.0157	0.0451	0.0478
270.0	0.1269	0.021	0.0354	0.0412
306.0	0.1654	0.0228	0.0474	0.0526
342.0	0.136	0.0195	0.05	0.0536

CLAS Physics Database