Measurement E213M487

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:	2.4 — 3.0 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	0.3369	0.0277	0.0856	0.1225
54.0	0.5062	0.0348	0.0856	0.0924
90.0	0.5212	0.0379	0.0825	0.0908
126.0	0.6168	0.033	0.093	0.0987
162.0	0.6631	0.0327	0.0965	0.1019
198.0	0.5934	0.033	0.087	0.093
234.0	0.5797	0.057	0.0878	0.1047
270.0	0.5319	0.0343	0.0838	0.0906
306.0	0.4872	0.0366	0.0839	0.0915
342.0	0.4113	0.0335	0.0958	0.1338

CLAS Physics Database