Measurement E151M1629

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:	0.0221
Q²:	0.0205 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.6866

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.45	18.0	-0.2637	0.8825
0.45	30.0	-1.9284	0.7864
0.45	42.0	0.0232	0.6596
0.45	222.0	1.1903	0.6437
0.55	42.0	-0.9929	0.6234
0.55	138.0	1.1221	0.8886
0.55	150.0	-0.3741	0.6535
0.55	162.0	0.1827	0.9326
0.55	174.0	-1.0077	0.8642
0.55	186.0	2.1012	0.8172
0.55	210.0	0.3256	1.1537
0.55	222.0	-1.2291	0.541
0.55	234.0	-0.8986	0.5463
0.55	246.0	0.848	0.7279
0.65	138.0	-0.872	0.5955
0.65	162.0	0.8658	0.6323
0.65	210.0	0.8487	0.6757
0.65	222.0	0.1773	0.5286
0.65	234.0	1.2678	0.5749
0.75	138.0	0.4904	1.2646
0.75	150.0	0.5536	1.0844
0.75	210.0	-0.8476	0.6656
0.75	222.0	-0.6433	0.5564
0.75	234.0	-1.0426	0.6021
0.85	126.0	0.2722	0.8159
0.85	138.0	-0.2759	0.7156
0.85	210.0	-1.364	0.7841
0.85	222.0	0.3836	0.8567
0.85	234.0	-0.818	0.8426
0.75	246.0	0.0088	0.8605
0.85	126.0	0.5894	1.1306
0.85	222.0	-0.1354	1.0826
0.85	234.0	-0.1053	1.1341

CLAS Physics Database