Measurement E213M1225

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:	4.2 — 5.0 GeV²
W:	1.475 — 1.5 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1193	0.0169	0.0381	0.0417
54.0	0.0772	0.0303	0.0224	0.0461
90.0	0.1501	0.018	0.0335	0.0381
126.0	0.1624	0.02	0.0349	0.0403
162.0	0.1782	0.0182	0.0366	0.0515
198.0	0.1725	0.0185	0.0358	0.0511
234.0	0.1806	0.0207	0.038	0.0433
270.0	0.1206	0.0147	0.0285	0.0321
306.0	0.1074	0.0333	0.0277	0.0433
342.0	0.1219	0.0193	0.0386	0.0432

CLAS Physics Database