Measurement E213M254

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:	1.675 — 1.7 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	1.0546	0.0461	0.1672	0.2428
54.0	1.1368	0.0508	0.1758	0.183
90.0	1.2674	0.0555	0.191	0.1989
126.0	1.3393	0.074	0.1986	0.212
162.0	1.56	0.0764	0.2176	0.2306
198.0	1.5724	0.0691	0.2182	0.2289
234.0	1.3796	0.0615	0.2007	0.2099
270.0	1.2256	0.0669	0.1876	0.1992
306.0	1.0451	0.0474	0.1688	0.1753
342.0	1.107	0.0533	0.1708	0.2433

CLAS Physics Database