Measurement E213M1315

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:	1.725 — 1.75 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2222	0.0255	0.0422	0.0493
54.0	0.2713	0.0273	0.0343	0.0439
90.0	0.3026	0.035	0.0384	0.052
126.0	0.3195	0.0322	0.0407	0.0518
162.0	0.3094	0.0259	0.0378	0.0458
198.0	0.3428	0.0322	0.0417	0.0526
234.0	0.3969	0.0353	0.0477	0.0593
270.0	0.3213	0.042	0.039	0.0573
306.0	0.2128	0.0195	0.0295	0.0354
342.0	0.2235	0.0361	0.0431	0.0563

CLAS Physics Database