Measurement E213M559

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:	2.4 — 3.0 GeV²
W:	1.8 — 1.825 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.7076	0.0382	0.1329	0.1383
54.0	0.7669	0.0487	0.1023	0.1133
90.0	0.7496	0.051	0.0945	0.1074
126.0	0.7551	0.0418	0.096	0.1047
162.0	0.9182	0.0408	0.1051	0.1127
198.0	0.9125	0.0474	0.1054	0.1156
234.0	0.7808	0.0337	0.0986	0.1042
270.0	0.7556	0.0348	0.0938	0.1001
306.0	0.7301	0.0419	0.1002	0.1086
342.0	0.7206	0.0412	0.1351	0.1412

CLAS Physics Database