Measurement E213M1218

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:	4.2 — 5.0 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	0.1308	0.0239	0.0295	0.038
54.0	0.1163	0.0154	0.0225	0.0273
90.0	0.0851	0.0114	0.0169	0.0204
126.0	0.1262	0.0158	0.0215	0.0267
162.0	0.1548	0.0181	0.0248	0.0351
198.0	0.1359	0.0149	0.0226	0.0321
234.0	0.1185	0.0153	0.0206	0.0256
270.0	0.0964	0.0136	0.0187	0.0231
306.0	0.0994	0.0128	0.0206	0.0243
342.0	0.1071	0.0164	0.0271	0.0317

CLAS Physics Database