Measurement E213M452

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:	2.4 — 3.0 GeV²
W:	1.5 — 1.525 GeV
E_beam:	5.754 GeV

Measurement data
ψ(π⁺), [deg]	dσ/dψ(π⁺), [μb/rad]	uncertainty	syst. uncert.	total uncert.
18.0	0.5223	0.0262	0.1004	0.1461
54.0	0.442	0.0242	0.0892	0.1227
90.0	0.4714	0.0294	0.0925	0.0971
126.0	0.6642	0.0325	0.1174	0.1218
162.0	0.7806	0.0324	0.1317	0.1356
198.0	0.742	0.0372	0.1268	0.1321
234.0	0.6159	0.0302	0.1109	0.1149
270.0	0.5764	0.036	0.107	0.1128
306.0	0.4673	0.0242	0.0933	0.1326
342.0	0.5221	0.0358	0.1008	0.1461

CLAS Physics Database