Measurement E151M2152

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:	0.0367
Q²:	0.0593 GeV²
W:	1715.0 GeV
E_beam:	2.2596 GeV
ε:	0.7917

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	282.0	-0.4392	0.6304	0.0414
0.75	222.0	-0.272	0.851	0.0348
0.85	114.0	-0.9025	0.7895	0.0659
0.85	210.0	-1.7919	0.7965	0.1204
0.85	222.0	0.5146	0.8588	0.045
0.65	294.0	-1.2517	0.7562	0.1189
0.75	270.0	0.8225	0.7397	0.0813
0.75	282.0	-0.7172	0.7835	0.0724
0.85	210.0	-3.2557	3.2557	0.3007

CLAS Physics Database