Measurement E151M1245

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:	0.0901
Q²:	0.0121 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.9165

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	42.0	-1.1044	0.5447	0.1281
0.45	54.0	-0.7899	0.5199	0.094
0.45	66.0	1.2523	0.5772	0.1444
0.45	270.0	-1.5378	0.3774	0.176
0.55	246.0	-0.925	0.3873	0.1086
0.55	258.0	-0.3904	0.3698	0.0533
0.55	270.0	0.017	0.3706	0.0301
0.55	282.0	-0.2752	0.5074	0.0432
0.65	162.0	-0.8965	0.5539	0.1055
0.65	174.0	0.6744	0.5553	0.0818
0.65	186.0	0.1701	0.6004	0.0356
0.65	198.0	0.6214	0.6382	0.0762
0.65	234.0	-0.3238	0.4067	0.0473
0.65	246.0	-0.1354	0.3656	0.0337
0.65	258.0	-0.1163	0.3205	0.0327
0.65	270.0	0.7378	0.3635	0.0885
0.65	282.0	-0.3182	0.4673	0.0468
0.75	150.0	-0.6725	0.5229	0.0816
0.75	162.0	0.7782	0.447	0.0928
0.75	174.0	-0.4109	0.4336	0.0552
0.75	186.0	0.2719	0.4731	0.0429
0.75	198.0	-0.2312	0.463	0.0397
0.75	210.0	-0.4674	0.5755	0.0607
0.75	222.0	0.5546	0.5041	0.0694
0.75	234.0	-0.0607	0.4327	0.0308
0.75	246.0	-0.2334	0.3535	0.0399
0.75	258.0	-0.3308	0.3193	0.0479
0.75	270.0	0.797	0.4306	0.0948
0.85	174.0	-0.0763	0.5996	0.0312
0.85	186.0	-0.2137	0.5477	0.0385
0.85	234.0	-1.0795	0.4472	0.1254
0.85	246.0	-0.0934	0.5847	0.0318
0.85	258.0	-0.2941	0.5431	0.0447

CLAS Physics Database