Measurement E213M1217

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:	1.45 — 1.475 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1126	0.0167	0.0227	0.0282
54.0	0.096	0.0123	0.0205	0.024
90.0	0.1086	0.0149	0.022	0.0265
126.0	0.1595	0.0178	0.0285	0.0336
162.0	0.1729	0.0201	0.0301	0.0362
198.0	0.1714	0.0198	0.0299	0.0358
234.0	0.135	0.0153	0.0254	0.0296
270.0	0.1172	0.0159	0.0232	0.0282
306.0	0.1082	0.0178	0.0222	0.0285
342.0	0.0891	0.012	0.0196	0.023

CLAS Physics Database