Measurement E213M730

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:	1.55 — 1.575 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2086	0.022	0.0604	0.0858
54.0	0.3223	0.0294	0.0635	0.0699
90.0	0.2958	0.0235	0.0565	0.0612
126.0	0.3366	0.0227	0.0622	0.0663
162.0	0.3599	0.0245	0.0648	0.0693
198.0	0.4028	0.0238	0.0717	0.0756
234.0	0.3674	0.0272	0.0671	0.0724
270.0	0.2985	0.0268	0.0568	0.0629
306.0	0.2827	0.0261	0.0574	0.0631
342.0	0.2734	0.0259	0.0696	0.0993

CLAS Physics Database