Measurement E213M227

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:	2.0 — 2.4 GeV²
W:	1.6 — 1.625 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.6351	0.0344	0.1289	0.1862
54.0	0.7202	0.0482	0.137	0.1453
90.0	0.8287	0.0468	0.1489	0.1561
126.0	0.9959	0.0513	0.168	0.1757
162.0	1.1263	0.0725	0.1809	0.1949
198.0	1.2458	0.059	0.193	0.2018
234.0	0.9729	0.0716	0.1655	0.1804
270.0	0.791	0.0508	0.1446	0.1533
306.0	0.7299	0.0436	0.1389	0.1456
342.0	0.6283	0.0452	0.1285	0.1794

CLAS Physics Database