Measurement E213M217

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:	1.575 — 1.6 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.6387	0.0518	0.1343	0.1439
54.0	0.8006	0.0523	0.1092	0.121
90.0	0.8004	0.0427	0.0965	0.1056
126.0	0.81	0.0426	0.0927	0.102
162.0	0.8386	0.0443	0.0891	0.0995
198.0	0.8484	0.04	0.0897	0.0982
234.0	0.8388	0.0417	0.0941	0.1029
270.0	0.7947	0.0548	0.0958	0.1103
306.0	0.7026	0.0579	0.0997	0.1153
342.0	0.6935	0.0592	0.1409	0.1528

CLAS Physics Database