Measurement E213M1235

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:	1.5 — 1.525 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.0768	0.0401	0.0249	0.0472
54.0	0.1487	0.0208	0.0369	0.0424
90.0	0.187	0.0223	0.0439	0.0492
126.0	0.2417	0.03	0.053	0.0609
162.0	0.2299	0.0243	0.0504	0.0712
198.0	0.2517	0.0246	0.0542	0.0769
234.0	0.2102	0.0304	0.0475	0.0564
270.0	0.1771	0.0179	0.042	0.0457
306.0	0.1512	0.0216	0.0379	0.0436
342.0	0.1171	0.0131	0.0315	0.0443

CLAS Physics Database