Measurement E151M1306

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:	0.027
Q²:	0.0071 GeV²
W:	1325.0 GeV
E_beam:	1.0539 GeV
ε:	0.8432

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	42.0	0.6233	0.9364	0.0764
0.55	222.0	-0.2945	0.8573	0.0448
0.55	234.0	-0.8594	0.7327	0.1015
0.55	246.0	-0.9422	0.7315	0.1104
0.65	54.0	0.1098	0.7463	0.0325
0.65	222.0	-0.5249	0.69	0.0664
0.65	234.0	0.2868	0.7021	0.0441
0.65	246.0	-0.0514	0.7189	0.0306
0.65	258.0	0.1123	0.7376	0.0326
0.75	222.0	-1.3539	0.7989	0.1556
0.75	234.0	-0.9798	0.5505	0.1145
0.75	246.0	-0.4428	0.6098	0.0583
0.75	258.0	-1.6145	0.6618	0.1845
0.85	222.0	1.3147	0.7264	0.1513
0.85	234.0	-0.2664	0.6828	0.0425
0.85	246.0	-0.3429	0.6094	0.0489

CLAS Physics Database