Measurement E213M1407

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:	4.2 — 5.0 GeV²
W:	1.975 — 2.0 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2128	0.021	0.0515	0.0556
54.0	0.2128	0.0147	0.0426	0.0451
90.0	0.1935	0.0159	0.0417	0.0446
126.0	0.2294	0.0175	0.0485	0.0515
162.0	0.2553	0.0197	0.0494	0.0532
198.0	0.2247	0.0178	0.047	0.0502
234.0	0.2173	0.0154	0.0473	0.0497
270.0	0.2115	0.0159	0.0428	0.0457
306.0	0.1961	0.0163	0.0413	0.0444
342.0	0.2139	0.0215	0.0517	0.056

CLAS Physics Database