Measurement E213M1119

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:	3.5 — 4.2 GeV²
W:	1.9 — 1.925 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.3913	0.0311	0.0747	0.0809
54.0	0.3794	0.0408	0.0577	0.0706
90.0	0.3425	0.0305	0.0518	0.0601
126.0	0.355	0.0382	0.0557	0.0675
162.0	0.4024	0.0316	0.0582	0.0662
198.0	0.4137	0.0426	0.0596	0.0733
234.0	0.356	0.0289	0.0565	0.0635
270.0	0.3945	0.0296	0.0584	0.0655
306.0	0.3714	0.0329	0.057	0.0658
342.0	0.3154	0.0713	0.0668	0.0977

CLAS Physics Database