Measurement E213M856

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:	1.9 — 1.925 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.377	0.0243	0.0748	0.0787
54.0	0.4897	0.0283	0.0628	0.0689
90.0	0.5207	0.0374	0.0653	0.0753
126.0	0.6869	0.0518	0.0807	0.0959
162.0	0.7624	0.0567	0.0861	0.1031
198.0	0.6073	0.0334	0.0727	0.0801
234.0	0.5984	0.045	0.0734	0.0861
270.0	0.5647	0.0362	0.0683	0.0773
306.0	0.4758	0.0351	0.0613	0.0707
342.0	0.4471	0.0297	0.0814	0.0867

CLAS Physics Database