Measurement E151M1226

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:	0.1373
Q²:	0.0143 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.9329

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	258.0	-0.2993	0.4754
0.55	270.0	0.1327	0.4827
0.65	246.0	0.7404	0.4857
0.65	258.0	0.4211	0.3712
0.65	270.0	-0.2315	0.422
0.75	162.0	0.1364	0.5925
0.75	174.0	0.1946	0.5857
0.75	186.0	-0.5918	0.4803
0.75	198.0	0.007	0.5143
0.75	210.0	-0.6531	0.5197
0.75	222.0	0.9271	0.4705
0.75	234.0	0.6597	0.5233
0.75	258.0	-0.5426	0.425
0.85	174.0	0.6905	0.4681
0.85	198.0	-0.0002	0.4829

CLAS Physics Database