Measurement E213M442

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:	1.475 — 1.5 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3674	0.031	0.0818	0.0875
54.0	0.4391	0.0341	0.0656	0.0739
90.0	0.4821	0.0265	0.0645	0.0697
126.0	0.5702	0.0285	0.0719	0.0773
162.0	0.5971	0.0275	0.0736	0.0785
198.0	0.5919	0.0332	0.0735	0.0807
234.0	0.5652	0.0272	0.0722	0.0771
270.0	0.4783	0.029	0.0642	0.0704
306.0	0.4695	0.0396	0.0687	0.0793
342.0	0.3439	0.0243	0.0818	0.0854

CLAS Physics Database