Measurement E213M1226

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:	4.2 — 5.0 GeV²
W:	1.475 — 1.5 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1162	0.0151	0.0305	0.0428
54.0	0.1193	0.0173	0.0307	0.0353
90.0	0.133	0.033	0.033	0.0467
126.0	0.1806	0.0222	0.0415	0.0585
162.0	0.2389	0.0349	0.0514	0.0731
198.0	0.1912	0.0214	0.0427	0.0602
234.0	0.1887	0.0292	0.0427	0.06
270.0	0.1589	0.0185	0.0378	0.0421
306.0	0.1399	0.0355	0.0348	0.0497
342.0	0.1155	0.0146	0.0303	0.043

CLAS Physics Database