Measurement E151M1406

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:	0.0106
Q²:	0.0084 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.6052

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	42.0	-0.574	0.6165	0.0714
0.35	54.0	1.324	0.6315	0.1523
0.45	42.0	-0.0383	0.8328	0.0303
0.45	54.0	-0.147	0.6469	0.0343
0.45	66.0	0.6543	0.7727	0.0797
0.45	234.0	1.2027	0.7171	0.1389
0.55	42.0	-0.526	0.8785	0.0665
0.55	162.0	0.9694	0.8547	0.1134
0.55	174.0	-0.7741	0.8122	0.0923
0.55	210.0	0.1221	0.7963	0.033
0.55	222.0	-1.5385	0.6789	0.1761
0.55	234.0	-0.737	0.6516	0.0884
0.55	246.0	0.0868	0.6523	0.0316
0.65	210.0	-2.351	2.351	0.2669
0.65	222.0	-0.0002	0.6848	0.03
0.65	234.0	0.7825	0.6533	0.0932
0.65	246.0	-0.7996	0.6208	0.095
0.75	222.0	0.3339	0.7793	0.0481
0.75	234.0	0.4001	0.6225	0.0542
0.75	246.0	0.0504	0.597	0.0305
0.85	222.0	-0.9107	0.5789	0.107
0.85	234.0	-1.3319	0.5865	0.1532
0.85	246.0	-0.1676	0.7073	0.0355

CLAS Physics Database