Measurement E213M1379

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:	1.9 — 1.925 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1913	0.0293	0.0354	0.046
54.0	0.1738	0.0318	0.035	0.0473
90.0	0.1942	0.0163	0.0401	0.0432
126.0	0.2913	0.027	0.0473	0.0544
162.0	0.2972	0.0348	0.0467	0.0582
198.0	0.3148	0.0223	0.0474	0.0523
234.0	0.3062	0.0285	0.0485	0.0562
270.0	0.2354	0.0245	0.0424	0.049
306.0	0.1899	0.0184	0.0359	0.0404
342.0	0.1502	0.0173	0.0319	0.0363

CLAS Physics Database