Measurement E213M939

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:	3.5 — 4.2 GeV²
W:	1.4 — 1.425 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1055	0.0107	0.0479	0.0491
54.0	0.1059	0.0105	0.0403	0.0416
90.0	0.0997	0.0116	0.0353	0.0371
126.0	0.123	0.0127	0.0378	0.0398
162.0	0.1396	0.0162	0.0395	0.0427
198.0	0.1233	0.0126	0.0363	0.0384
234.0	0.1268	0.0135	0.0385	0.0408
270.0	0.0983	0.0118	0.0351	0.037
306.0	0.1064	0.0114	0.0403	0.0419
342.0	0.1097	0.0089	0.0487	0.0495

CLAS Physics Database