Measurement E151M1643

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:	0.0093
Q²:	0.0101 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.6486

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	222.0	-0.2284	0.9762	0.033
0.75	210.0	-0.7896	1.0258	0.056
0.75	234.0	-0.5045	0.9722	0.0426
0.55	42.0	-1.0707	1.3397	0.0691
0.65	210.0	-1.2497	1.1058	0.0786
0.75	234.0	-1.2256	1.2914	0.0773
0.85	222.0	2.1782	0.8289	0.1302

CLAS Physics Database