Measurement E213M262

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:	1.7 — 1.725 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	1.3889	0.0725	0.2644	0.2742
54.0	1.4648	0.0729	0.2049	0.2175
90.0	1.5354	0.073	0.1904	0.2039
126.0	1.4813	0.0589	0.1836	0.1928
162.0	1.6161	0.063	0.1833	0.1938
198.0	1.5891	0.0813	0.1777	0.1954
234.0	1.4757	0.0663	0.1826	0.1943
270.0	1.2575	0.0612	0.1653	0.1762
306.0	1.4692	0.0786	0.2043	0.2188
342.0	1.3074	0.0723	0.2565	0.2665

CLAS Physics Database