Measurement E213M865

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:	1.925 — 1.95 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.4116	0.035	0.0744	0.0822
54.0	0.4095	0.035	0.0541	0.0644
90.0	0.5001	0.0334	0.063	0.0713
126.0	0.5672	0.0309	0.0708	0.0772
162.0	0.632	0.0337	0.0745	0.0818
198.0	0.603	0.0321	0.074	0.0807
234.0	0.5451	0.0313	0.0691	0.0759
270.0	0.4751	0.0298	0.0605	0.0675
306.0	0.4252	0.03	0.0557	0.0633
342.0	0.3925	0.0346	0.0726	0.0804

CLAS Physics Database