Measurement E213M1396

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:	1.95 — 1.975 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1826	0.0172	0.0494	0.0523
54.0	0.1575	0.0162	0.0373	0.0407
90.0	0.2457	0.0237	0.0503	0.0556
126.0	0.2325	0.0172	0.0544	0.0571
162.0	0.3916	0.0301	0.0685	0.0748
198.0	0.3118	0.0231	0.06	0.0643
234.0	0.2621	0.0222	0.0571	0.0612
270.0	0.2053	0.0157	0.0466	0.0491
306.0	0.1499	0.0127	0.036	0.0382
342.0	0.1694	0.0241	0.0479	0.0536

CLAS Physics Database