Measurement E213M964

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:	3.5 — 4.2 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	0.1832	0.0183	0.0498	0.0531
54.0	0.2078	0.0221	0.0413	0.0469
90.0	0.2496	0.0246	0.0451	0.0514
126.0	0.2669	0.0208	0.0467	0.0511
162.0	0.2606	0.0226	0.0449	0.0503
198.0	0.2891	0.0217	0.0492	0.0538
234.0	0.2681	0.0321	0.0468	0.0568
270.0	0.2498	0.0225	0.0449	0.0502
306.0	0.1817	0.0191	0.037	0.0416
342.0	0.1952	0.0263	0.0515	0.0578

CLAS Physics Database