Measurement E213M1234

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:	1.5 — 1.525 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.1334	0.0228	0.0433	0.049
54.0	0.1546	0.0216	0.0367	0.0426
90.0	0.1565	0.0178	0.0357	0.0399
126.0	0.1816	0.0229	0.0392	0.0454
162.0	0.2328	0.0237	0.0468	0.0525
198.0	0.1987	0.0205	0.0412	0.046
234.0	0.1848	0.0218	0.0399	0.0455
270.0	0.1739	0.019	0.0386	0.0431
306.0	0.1321	0.0161	0.0327	0.0364
342.0	0.1121	0.0147	0.0402	0.0428

CLAS Physics Database