Measurement E213M246

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(p)
Q²:	2.0 — 2.4 GeV²
W:	1.65 — 1.675 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	1.2286	0.0813	0.2532	0.266
54.0	1.0942	0.0615	0.1867	0.1966
90.0	0.9844	0.0597	0.157	0.1679
126.0	0.991	0.0513	0.1514	0.1598
162.0	1.0506	0.044	0.1527	0.1589
198.0	1.0794	0.0566	0.1573	0.1672
234.0	0.9591	0.0469	0.149	0.1562
270.0	0.9544	0.0612	0.1548	0.1665
306.0	1.2073	0.0659	0.1985	0.2092
342.0	1.2404	0.067	0.254	0.2626

CLAS Physics Database