Measurement E213M307

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:	1.825 — 1.85 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.9197	0.043	0.1794	0.1845
54.0	0.9766	0.049	0.1406	0.1489
90.0	0.9816	0.0642	0.1299	0.1449
126.0	1.0346	0.0528	0.136	0.1459
162.0	1.1567	0.0571	0.1389	0.1502
198.0	1.1216	0.0515	0.1338	0.1434
234.0	1.0042	0.0472	0.134	0.1421
270.0	1.0144	0.0556	0.1333	0.1444
306.0	0.8773	0.0462	0.1301	0.1381
342.0	0.7978	0.0439	0.1663	0.172

CLAS Physics Database