Measurement E213M1297

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:	1.675 — 1.7 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2512	0.0353	0.0516	0.0625
54.0	0.24	0.0245	0.0355	0.0431
90.0	0.2106	0.0178	0.0345	0.0388
126.0	0.2475	0.0246	0.0387	0.0458
162.0	0.33	0.0275	0.0431	0.0512
198.0	0.2869	0.0281	0.0399	0.0488
234.0	0.2803	0.0287	0.0425	0.0513
270.0	0.2198	0.0184	0.0351	0.0396
306.0	0.2186	0.0249	0.0336	0.0418
342.0	0.2829	0.0426	0.0553	0.0698

CLAS Physics Database