Measurement E213M280

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:	1.75 — 1.775 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.9318	0.0481	0.1704	0.177
54.0	1.0707	0.0488	0.1353	0.1438
90.0	0.9822	0.0544	0.115	0.1273
126.0	1.1328	0.0568	0.1294	0.1413
162.0	1.1551	0.0519	0.1204	0.1311
198.0	1.2293	0.0638	0.125	0.1403
234.0	1.1558	0.0745	0.1303	0.1501
270.0	1.2017	0.067	0.135	0.1507
306.0	1.0979	0.0588	0.1365	0.1487
342.0	0.9116	0.0471	0.1644	0.171

CLAS Physics Database