Measurement E151M1232

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:	0.3544
Q²:	0.0415 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.9107

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	282.0	0.0276	0.5364	0.0302
0.55	270.0	-0.6129	0.4713	0.0754
0.55	282.0	0.0747	0.396	0.0312
0.65	258.0	-0.1071	0.4685	0.0323
0.65	270.0	-0.8464	0.3615	0.1001
0.65	282.0	0.3086	0.4958	0.046
0.75	258.0	-0.3827	0.3939	0.0526
0.75	270.0	-0.623	0.3683	0.0764
0.85	138.0	-0.321	0.527	0.047
0.85	150.0	0.1952	0.5117	0.0372
0.85	162.0	-0.0433	0.4028	0.0304
0.85	174.0	-0.0705	0.3663	0.031
0.85	186.0	0.5626	0.3699	0.0702
0.85	198.0	-0.0515	0.3508	0.0306
0.85	210.0	0.3225	0.391	0.0472
0.85	222.0	-0.0681	0.5435	0.031
0.95	186.0	-0.0291	0.4117	0.0302
0.95	210.0	-0.042	0.4266	0.0304

CLAS Physics Database