Measurement E151M1243

Experiment:	EG4
Year:	2016	Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_LL
ε_L:	0.0642
Q²:	0.0084 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.9196

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	258.0	-0.5719	0.4581	0.0711
0.55	270.0	-0.1188	0.5161	0.0329
0.65	234.0	0.6036	0.5792	0.0744
0.65	246.0	0.0065	0.4503	0.03
0.65	258.0	0.1685	0.4876	0.0355
0.65	270.0	-0.8062	0.4667	0.0958
0.75	174.0	-0.3755	0.6116	0.0519
0.75	246.0	0.9582	0.4121	0.1122
0.75	258.0	-0.4202	0.4685	0.0561

CLAS Physics Database