Measurement E151M2427

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:	0.0303
Q²:	0.0844 GeV²
W:	1895.0 GeV
E_beam:	2.999 GeV
ε:	0.7965

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	114.0	1.3784	0.9984	0.1044
0.75	270.0	0.473	0.9242	0.0456
0.85	102.0	0.3571	1.0094	0.0396
0.85	114.0	0.271	0.9233	0.0359
0.85	126.0	-1.0899	1.0065	0.0845
0.85	186.0	0.3997	1.1098	0.0417
0.85	198.0	-0.7961	0.8553	0.0651
0.85	210.0	-1.2311	0.9468	0.0942

CLAS Physics Database