Measurement E213M1243

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:	1.525 — 1.55 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.0904	0.0137	0.0317	0.0346
54.0	0.0849	0.011	0.0236	0.026
90.0	0.0927	0.026	0.024	0.0354
126.0	0.1605	0.0189	0.0359	0.0406
162.0	0.1701	0.017	0.0365	0.0513
198.0	0.1564	0.0227	0.0342	0.0487
234.0	0.1608	0.0176	0.0359	0.04
270.0	0.1132	0.0134	0.0279	0.0391
306.0	0.0895	0.0113	0.0243	0.0268
342.0	0.0807	0.0127	0.0304	0.0329

CLAS Physics Database