Measurement E213M838

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:	3.0 — 3.5 GeV²
W:	1.85 — 1.875 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.495	0.04	0.0892	0.0977
54.0	0.4435	0.0521	0.0616	0.0806
90.0	0.5102	0.0362	0.0659	0.0751
126.0	0.6167	0.045	0.0784	0.0904
162.0	0.719	0.0588	0.0851	0.1035
198.0	0.6095	0.0429	0.0755	0.0868
234.0	0.5975	0.0405	0.0776	0.0875
270.0	0.4846	0.0339	0.063	0.0716
306.0	0.4937	0.0449	0.0663	0.08
342.0	0.4762	0.0368	0.0858	0.0934

CLAS Physics Database