Measurement E151M1655

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:	0.063
Q²:	0.0844 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.5786

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	162.0	-1.8254	0.8927
0.65	234.0	-1.1268	1.0103
0.75	138.0	0.7119	1.0192
0.75	150.0	-0.9321	0.8475
0.75	234.0	0.3959	1.0292
0.85	234.0	-1.4609	0.8899
0.55	234.0	1.108	1.1933
0.65	234.0	-1.8514	0.8686
0.85	234.0	-2.1971	0.6281
0.85	258.0	-0.7831	0.9266

CLAS Physics Database