Measurement E213M1207

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:	1.425 — 1.45 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁻), [deg]	dσ/dψ(π⁻), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.0772	0.0104	0.033	0.0346
54.0	0.0884	0.0142	0.0282	0.0316
90.0	0.0748	0.0131	0.0233	0.0267
126.0	0.1317	0.0176	0.0356	0.0397
162.0	0.1434	0.018	0.037	0.0411
198.0	0.1212	0.0148	0.0319	0.0352
234.0	0.1083	0.0141	0.0302	0.0333
270.0	0.0855	0.0146	0.0258	0.0296
306.0	0.0679	0.0139	0.0233	0.0271
342.0	0.0897	0.0174	0.0353	0.0394

CLAS Physics Database