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	syst. uncert.
0.55	258.0	-0.2993	0.4754	0.0452
0.55	270.0	0.1327	0.4827	0.0335
0.65	246.0	0.7404	0.4857	0.0887
0.65	258.0	0.4211	0.3712	0.0562
0.65	270.0	-0.2315	0.422	0.0398
0.75	162.0	0.1364	0.5925	0.0337
0.75	174.0	0.1946	0.5857	0.0372
0.75	186.0	-0.5918	0.4803	0.0732
0.75	198.0	0.007	0.5143	0.03
0.75	210.0	-0.6531	0.5197	0.0795
0.75	222.0	0.9271	0.4705	0.1088
0.75	234.0	0.6597	0.5233	0.0802
0.75	258.0	-0.5426	0.425	0.0682
0.85	174.0	0.6905	0.4681	0.0835
0.85	198.0	-0.0002	0.4829	0.03

CLAS Physics Database