Measurement E213M253

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:	2.0 — 2.4 GeV²
W:	1.675 — 1.7 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	1.0645	0.0552	0.2115	0.2185
54.0	1.1304	0.058	0.1578	0.1681
90.0	1.3021	0.0639	0.1521	0.165
126.0	1.2685	0.0633	0.146	0.1591
162.0	1.3829	0.0596	0.1446	0.1565
198.0	1.3031	0.0501	0.1356	0.1445
234.0	1.3423	0.0654	0.1513	0.1648
270.0	1.2453	0.0536	0.1481	0.1574
306.0	1.1297	0.0551	0.1544	0.1639
342.0	1.0888	0.0582	0.2127	0.2205

CLAS Physics Database