Measurement E213M957

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(p)
Q²:	3.5 — 4.2 GeV²
W:	1.45 — 1.475 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1726	0.0187	0.0316	0.0367
54.0	0.1861	0.0207	0.0258	0.033
90.0	0.1875	0.0177	0.0233	0.0292
126.0	0.19	0.0167	0.0226	0.032
162.0	0.1951	0.0161	0.0227	0.0324
198.0	0.1894	0.016	0.0222	0.032
234.0	0.1645	0.0149	0.0207	0.0294
270.0	0.1925	0.0171	0.0241	0.0295
306.0	0.0889	0.0975	0.0165	0.0989
342.0	0.1861	0.0211	0.0327	0.0389

CLAS Physics Database