Measurement E213M982

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:	1.525 — 1.55 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1932	0.0188	0.0518	0.0551
54.0	0.228	0.0307	0.0453	0.0547
90.0	0.2683	0.025	0.0492	0.0551
126.0	0.2126	0.0176	0.0396	0.0433
162.0	0.2659	0.0214	0.0471	0.0518
198.0	0.2385	0.021	0.0426	0.0475
234.0	0.2887	0.0236	0.0513	0.0565
270.0	0.245	0.021	0.0451	0.0497
306.0	0.2117	0.0207	0.0425	0.0473
342.0	0.1982	0.0233	0.0525	0.0574

CLAS Physics Database