Measurement E151M1285

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:	0.0401
Q²:	0.0084 GeV²
W:	1295.0 GeV
E_beam:	1.0539 GeV
ε:	0.8721

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	42.0	-1.0788	0.7775
0.55	234.0	-0.4754	0.6501
0.55	246.0	-0.5268	0.5243
0.55	258.0	1.0917	0.6255
0.65	162.0	0.9693	0.7302
0.65	222.0	0.9322	0.7447
0.65	234.0	0.6004	0.5229
0.65	246.0	0.3177	0.4421
0.65	258.0	-0.3565	0.5068
0.75	150.0	0.9301	0.7868
0.75	222.0	0.5576	0.6618
0.75	234.0	-0.1235	0.4845
0.75	246.0	0.2239	0.5181
0.75	258.0	0.1876	0.5421
0.85	222.0	1.0341	0.5907
0.85	234.0	1.02	0.5343
0.85	246.0	1.1437	0.5386
0.85	258.0	1.3175	0.6511

CLAS Physics Database