Measurement E213M1065

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(p)
Q²:	3.5 — 4.2 GeV²
W:	1.75 — 1.775 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3823	0.0303	0.0614	0.0684
54.0	0.4417	0.0333	0.0514	0.0612
90.0	0.3828	0.0263	0.0446	0.0517
126.0	0.3908	0.026	0.0442	0.0513
162.0	0.4511	0.0342	0.0484	0.0592
198.0	0.4185	0.0342	0.0451	0.0566
234.0	0.3275	0.0214	0.0389	0.0444
270.0	0.3923	0.0359	0.0456	0.058
306.0	0.4261	0.0346	0.0508	0.0614
342.0	0.4448	0.0346	0.0668	0.0753

CLAS Physics Database