Measurement E213M955

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:	3.5 — 4.2 GeV²
W:	1.45 — 1.475 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1567	0.0175	0.0341	0.0383
54.0	0.119	0.0579	0.0202	0.0613
90.0	0.1649	0.0164	0.0218	0.0273
126.0	0.2271	0.0233	0.0264	0.0352
162.0	0.2096	0.0163	0.024	0.0291
198.0	0.2229	0.018	0.0252	0.0309
234.0	0.2182	0.0184	0.0255	0.0315
270.0	0.1925	0.019	0.0239	0.0305
306.0	0.177	0.0203	0.0253	0.0325
342.0	0.1572	0.0196	0.0345	0.0397

CLAS Physics Database