Measurement E213M802

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:	3.0 — 3.5 GeV²
W:	1.75 — 1.775 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.5091	0.0332	0.0765	0.0834
54.0	0.5493	0.0385	0.0584	0.07
90.0	0.5586	0.0348	0.0562	0.0661
126.0	0.5734	0.0402	0.0583	0.0708
162.0	0.6253	0.0453	0.0585	0.074
198.0	0.6584	0.0573	0.0617	0.0842
234.0	0.658	0.0423	0.0658	0.0782
270.0	0.5557	0.0363	0.0558	0.0666
306.0	0.5474	0.0415	0.058	0.0713
342.0	0.5119	0.0478	0.0756	0.0895

CLAS Physics Database