Measurement E213M1415

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:	2.0 — 2.025 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1198	0.012	0.0338	0.0359
54.0	0.1934	0.0469	0.0417	0.0627
90.0	0.2501	0.0296	0.0486	0.0569
126.0	0.23	0.0196	0.0464	0.0503
162.0	0.3128	0.0395	0.0512	0.0647
198.0	0.2792	0.0219	0.0481	0.0529
234.0	0.2688	0.0314	0.0499	0.0589
270.0	0.2074	0.0208	0.0451	0.0496
306.0	0.1397	0.0164	0.0373	0.0407
342.0	0.1549	0.0171	0.0371	0.0409

CLAS Physics Database