Measurement E151M1421

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:	0.1672
Q²:	0.0171 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.9594

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	258.0	-0.2866	0.7341	0.0343
0.65	270.0	-0.397	0.6978	0.0379
0.85	162.0	-0.29	0.7168	0.0344
0.85	198.0	-0.7091	0.6999	0.051
0.55	270.0	-0.5832	0.5967	0.0461
0.75	174.0	-0.1241	0.5488	0.0309
0.75	258.0	-0.0705	0.6062	0.0303
0.85	186.0	-0.0598	0.5572	0.0302

CLAS Physics Database