Measurement E213M938

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

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1029	0.0139	0.0337	0.0365
54.0	0.1269	0.0162	0.0375	0.0409
90.0	0.1219	0.0183	0.0368	0.0411
126.0	0.1399	0.0152	0.0394	0.0423
162.0	0.1807	0.0196	0.0468	0.0667
198.0	0.1972	0.0196	0.0498	0.071
234.0	0.1301	0.0125	0.0376	0.0396
270.0	0.1208	0.0126	0.0362	0.0383
306.0	0.1254	0.016	0.0375	0.0407
342.0	0.1025	0.0115	0.034	0.0359

CLAS Physics Database