Measurement E213M1191

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:	2.1 — 2.125 GeV
E_beam:	5.754 GeV

Measurement data
ψ(p), [deg]	dσ/dψ(p), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.2069	0.0178	0.0474	0.0507
54.0	0.2328	0.0164	0.0419	0.045
90.0	0.2557	0.0218	0.0438	0.0489
126.0	0.2147	0.0135	0.0437	0.0457
162.0	0.2771	0.0218	0.0473	0.052
198.0	0.2836	0.0185	0.0481	0.0515
234.0	0.2282	0.0148	0.0447	0.0471
270.0	0.2194	0.0141	0.0404	0.0427
306.0	0.2086	0.0134	0.0399	0.0421
342.0	0.2079	0.0181	0.047	0.0504

CLAS Physics Database