Measurement E213M1262

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:	1.575 — 1.6 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.0974	0.0176	0.0333	0.0377
54.0	0.0882	0.0106	0.0312	0.0329
90.0	0.1295	0.0136	0.0417	0.0438
126.0	0.1961	0.0218	0.0586	0.083
162.0	0.2449	0.0296	0.0702	0.0996
198.0	0.2093	0.0374	0.0613	0.0868
234.0	0.1865	0.0192	0.0558	0.0785
270.0	0.1123	0.0432	0.0374	0.0572
306.0	0.1037	0.0134	0.0348	0.0373
342.0	0.0842	0.0119	0.0301	0.0323

CLAS Physics Database