Measurement E213M199

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:	1.525 — 1.55 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.6615	0.0444	0.1598	0.1658
54.0	0.7739	0.0475	0.122	0.1309
90.0	0.737	0.0353	0.1054	0.1111
126.0	0.794	0.0426	0.1019	0.1105
162.0	0.8128	0.0342	0.099	0.1047
198.0	0.8471	0.0427	0.1028	0.1113
234.0	0.739	0.0354	0.0967	0.103
270.0	0.7759	0.0404	0.1078	0.1152
306.0	0.734	0.0448	0.1202	0.1283
342.0	0.6172	0.0392	0.1582	0.1629

CLAS Physics Database