Measurement E213M173

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:	1.45 — 1.475 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.582	0.0575	0.1302	0.1424
54.0	0.6285	0.0361	0.1325	0.1373
90.0	0.7018	0.0371	0.1413	0.1461
126.0	0.7788	0.0486	0.1466	0.2087
162.0	0.8445	0.053	0.1521	0.2157
198.0	0.8884	0.0466	0.1584	0.2227
234.0	0.7383	0.0369	0.1431	0.2124
270.0	0.6657	0.0368	0.1375	0.1423
306.0	0.5861	0.0312	0.1289	0.1326
342.0	0.6446	0.0342	0.1356	0.1399

CLAS Physics Database