Measurement E213M984

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:	1.525 — 1.55 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2619	0.0243	0.0602	0.0649
54.0	0.2417	0.0193	0.0475	0.0512
90.0	0.2114	0.0184	0.04	0.044
126.0	0.2378	0.02	0.0436	0.0613
162.0	0.2081	0.0182	0.0381	0.054
198.0	0.2274	0.0209	0.0416	0.0591
234.0	0.2097	0.0188	0.0395	0.0561
270.0	0.2157	0.0205	0.0412	0.046
306.0	0.2269	0.0274	0.0453	0.053
342.0	0.2638	0.0262	0.0612	0.0666

CLAS Physics Database