Measurement E213M181

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:	1.475 — 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	0.808	0.0528	0.2105	0.217
54.0	0.8607	0.051	0.1515	0.1598
90.0	0.8516	0.0591	0.1298	0.1426
126.0	0.9863	0.0436	0.1342	0.1411
162.0	1.028	0.0528	0.136	0.1458
198.0	1.0175	0.0408	0.1341	0.1402
234.0	0.8636	0.0492	0.1208	0.1304
270.0	0.8905	0.0499	0.1339	0.1429
306.0	0.92	0.0603	0.1603	0.1713
342.0	0.8045	0.0516	0.2166	0.2227

CLAS Physics Database