Measurement E213M1245

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(p)
Q²:	4.2 — 5.0 GeV²
W:	1.525 — 1.55 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1264	0.0154	0.0364	0.0396
54.0	0.1242	0.0148	0.0305	0.0434
90.0	0.1135	0.0159	0.0275	0.0317
126.0	0.1264	0.0186	0.0295	0.0418
162.0	0.1391	0.0142	0.0313	0.0442
198.0	0.1412	0.0155	0.032	0.0456
234.0	0.0986	0.0132	0.0243	0.0343
270.0	0.1071	0.0135	0.0266	0.0298
306.0	0.0977	0.0336	0.0259	0.0425
342.0	0.1576	0.0192	0.042	0.0462

CLAS Physics Database