Measurement E151M1587

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:	0.0136
Q²:	0.0084 GeV²
W:	1475.0 GeV
E_beam:	1.3383 GeV
ε:	0.7778

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	222.0	-0.8098	0.9948	0.0558
0.55	234.0	0.2292	0.6831	0.0401
0.65	222.0	0.6761	0.7985	0.0504
0.65	234.0	-0.84	0.6715	0.064
0.75	222.0	-1.7775	0.7118	0.1076
0.75	234.0	-0.1013	0.8706	0.0306

CLAS Physics Database