Measurement E213M1423

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:	4.2 — 5.0 GeV²
W:	2.025 — 2.05 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1202	0.0127	0.0348	0.037
54.0	0.1534	0.0136	0.0324	0.0352
90.0	0.1968	0.0158	0.0384	0.0415
126.0	0.2322	0.0173	0.0455	0.0486
162.0	0.3005	0.0245	0.0481	0.054
198.0	0.302	0.0244	0.0479	0.0538
234.0	0.2314	0.0265	0.0449	0.0521
270.0	0.2108	0.0167	0.0391	0.0425
306.0	0.1512	0.0172	0.0318	0.0361
342.0	0.1074	0.0087	0.0338	0.0349

CLAS Physics Database